diff --git a/runtime/syntax/tex.vim b/runtime/syntax/tex.vim
index 365acf4..b8756a8 100644
--- a/runtime/syntax/tex.vim
+++ b/runtime/syntax/tex.vim
@@ -1,8 +1,8 @@
 " Vim syntax file
 " Language:	TeX
 " Maintainer:	Dr. Charles E. Campbell, Jr. <NdrchipO@ScampbellPfamily.AbizM>
-" Last Change:	Dec 07, 2010 
-" Version:	64
+" Last Change:	Aug 22, 2011 
+" Version:	68
 " URL:		http://mysite.verizon.net/astronaut/vim/index.html#vimlinks_syntax
 "
 " Notes: {{{1
@@ -101,6 +101,9 @@
 if b:tex_stylish
   setlocal isk+=@-@
 endif
+if exists("g:tex_nospell") && g:tex_nospell && !exists("g:tex_comment_nospell")
+ let g:tex_comment_nospell= 1
+endif
 
 " Clusters: {{{1
 " --------
@@ -110,8 +113,13 @@
 endif
 syn cluster texEnvGroup		contains=texMatcher,texMathDelim,texSpecialChar,texStatement
 syn cluster texFoldGroup	contains=texAccent,texBadMath,texComment,texDefCmd,texDelimiter,texDocType,texInput,texInputFile,texLength,texLigature,texMatcher,texMathZoneV,texMathZoneW,texMathZoneX,texMathZoneY,texMathZoneZ,texNewCmd,texNewEnv,texOnlyMath,texOption,texParen,texRefZone,texSection,texSectionMarker,texSectionZone,texSpaceCode,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle,texZone,@texMathZones,texTitle,texAbstract
-syn cluster texMatchGroup	contains=texAccent,texBadMath,texComment,texDefCmd,texDelimiter,texDocType,texInput,texLength,texLigature,texMatcher,texNewCmd,texNewEnv,texOnlyMath,texParen,texRefZone,texSection,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle,texZone,texInputFile,texOption,@Spell
-syn cluster texStyleGroup	contains=texAccent,texBadMath,texComment,texDefCmd,texDelimiter,texDocType,texInput,texLength,texLigature,texNewCmd,texNewEnv,texOnlyMath,texParen,texRefZone,texSection,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle,texZone,texInputFile,texOption,texStyleStatement,@Spell,texStyleMatcher
+if !exists("g:tex_nospell") || !g:tex_nospell
+ syn cluster texMatchGroup	contains=texAccent,texBadMath,texComment,texDefCmd,texDelimiter,texDocType,texInput,texLength,texLigature,texMatcher,texNewCmd,texNewEnv,texOnlyMath,texParen,texRefZone,texSection,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle,texZone,texInputFile,texOption,@Spell
+ syn cluster texStyleGroup	contains=texAccent,texBadMath,texComment,texDefCmd,texDelimiter,texDocType,texInput,texLength,texLigature,texNewCmd,texNewEnv,texOnlyMath,texParen,texRefZone,texSection,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle,texZone,texInputFile,texOption,texStyleStatement,@Spell,texStyleMatcher
+else
+ syn cluster texMatchGroup	contains=texAccent,texBadMath,texComment,texDefCmd,texDelimiter,texDocType,texInput,texLength,texLigature,texMatcher,texNewCmd,texNewEnv,texOnlyMath,texParen,texRefZone,texSection,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle,texZone,texInputFile,texOption
+ syn cluster texStyleGroup	contains=texAccent,texBadMath,texComment,texDefCmd,texDelimiter,texDocType,texInput,texLength,texLigature,texNewCmd,texNewEnv,texOnlyMath,texParen,texRefZone,texSection,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle,texZone,texInputFile,texOption,texStyleStatement,texStyleMatcher
+endif
 syn cluster texRefGroup		contains=texMatcher,texComment,texDelimiter
 if !exists("tex_no_math")
  syn cluster texMathZones	contains=texMathZoneV,texMathZoneW,texMathZoneX,texMathZoneY,texMathZoneZ
@@ -147,7 +155,11 @@
  syn region texMatcher		matchgroup=Delimiter start="{" skip="\\\\\|\\[{}]"	end="}"		contains=@texMatchGroup
  syn region texMatcher		matchgroup=Delimiter start="\["				end="]"		contains=@texMatchGroup
 endif
-syn region texParen		start="("						end=")"		contains=@texMatchGroup,@Spell
+if !exists("g:tex_nospell") || !g:tex_nospell
+ syn region texParen		start="("						end=")"		contains=@texMatchGroup,@Spell
+else
+ syn region texParen		start="("						end=")"		contains=@texMatchGroup
+endif
 if !exists("g:tex_no_error")
  syn match  texError		"[}\])]"
 endif
@@ -155,7 +167,8 @@
  if !exists("g:tex_no_error")
   syn match  texMathError	"}"	contained
  endif
- syn region texMathMatcher	matchgroup=Delimiter start="{"  skip="\\\\\|\\}"  end="}" end="%stopzone\>" contained contains=@texMathMatchGroup
+ syn region texMathMatcher	matchgroup=Delimiter	start="{"          skip="\\\\\|\\}"     end="}" end="%stopzone\>"	contained contains=@texMathMatchGroup
+" syn region texMathMatcher	matchgroup=Unique	start="[^\\]\zs{"  skip="\\\\\|\\[{}]"  end="}" end="%stopzone\>"	contained contains=@texMathMatchGroup
 endif
 
 " TeX/LaTeX keywords: {{{1
@@ -173,6 +186,7 @@
 " TeX/LaTeX delimiters: {{{1
 syn match texDelimiter		"&"
 syn match texDelimiter		"\\\\"
+syn match texDelimiter		"[{}]"
 
 " Tex/Latex Options: {{{1
 syn match texOption	"[^\\]\zs#\d\+\|^#\d\+"
@@ -273,33 +287,59 @@
 syn match texSpaceCodeChar    "`\\\=.\(\^.\)\==\(\d\|\"\x\{1,6}\|`.\)"	contained
 
 " Sections, subsections, etc: {{{1
-if g:tex_fold_enabled && has("folding")
- syn region texDocZone			matchgroup=texSection start='\\begin\s*{\s*document\s*}' end='\\end\s*{\s*document\s*}'											fold contains=@texFoldGroup,@texDocGroup,@Spell
- syn region texPartZone			matchgroup=texSection start='\\part\>'			 end='\ze\s*\\\%(part\>\|end\s*{\s*document\s*}\)'								fold contains=@texFoldGroup,@texPartGroup,@Spell
- syn region texChapterZone		matchgroup=texSection start='\\chapter\>'		 end='\ze\s*\\\%(chapter\>\|part\>\|end\s*{\s*document\s*}\)'							fold contains=@texFoldGroup,@texChapterGroup,@Spell
- syn region texSectionZone		matchgroup=texSection start='\\section\>'		 end='\ze\s*\\\%(section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'					fold contains=@texFoldGroup,@texSectionGroup,@Spell
- syn region texSubSectionZone		matchgroup=texSection start='\\subsection\>'		 end='\ze\s*\\\%(\%(sub\)\=section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				fold contains=@texFoldGroup,@texSubSectionGroup,@Spell
- syn region texSubSubSectionZone	matchgroup=texSection start='\\subsubsection\>'		 end='\ze\s*\\\%(\%(sub\)\{,2}section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				fold contains=@texFoldGroup,@texSubSubSectionGroup,@Spell
- syn region texParaZone			matchgroup=texSection start='\\paragraph\>'		 end='\ze\s*\\\%(paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'			fold contains=@texFoldGroup,@texParaGroup,@Spell
- syn region texSubParaZone		matchgroup=texSection start='\\subparagraph\>'		 end='\ze\s*\\\%(\%(sub\)\=paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'	fold contains=@texFoldGroup,@Spell
- syn region texTitle			matchgroup=texSection start='\\\%(author\|title\)\>\s*{' end='}'													fold contains=@texFoldGroup,@Spell
- syn region texAbstract			matchgroup=texSection start='\\begin\s*{\s*abstract\s*}' end='\\end\s*{\s*abstract\s*}'											fold contains=@texFoldGroup,@Spell
+if !exists("g:tex_nospell") || !g:tex_nospell
+ if g:tex_fold_enabled && has("folding")
+  syn region texDocZone			matchgroup=texSection start='\\begin\s*{\s*document\s*}' end='\\end\s*{\s*document\s*}'											fold contains=@texFoldGroup,@texDocGroup,@Spell
+  syn region texPartZone		matchgroup=texSection start='\\part\>'			 end='\ze\s*\\\%(part\>\|end\s*{\s*document\s*}\)'								fold contains=@texFoldGroup,@texPartGroup,@Spell
+  syn region texChapterZone		matchgroup=texSection start='\\chapter\>'		 end='\ze\s*\\\%(chapter\>\|part\>\|end\s*{\s*document\s*}\)'							fold contains=@texFoldGroup,@texChapterGroup,@Spell
+  syn region texSectionZone		matchgroup=texSection start='\\section\>'		 end='\ze\s*\\\%(section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'					fold contains=@texFoldGroup,@texSectionGroup,@Spell
+  syn region texSubSectionZone		matchgroup=texSection start='\\subsection\>'		 end='\ze\s*\\\%(\%(sub\)\=section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				fold contains=@texFoldGroup,@texSubSectionGroup,@Spell
+  syn region texSubSubSectionZone	matchgroup=texSection start='\\subsubsection\>'		 end='\ze\s*\\\%(\%(sub\)\{,2}section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				fold contains=@texFoldGroup,@texSubSubSectionGroup,@Spell
+  syn region texParaZone		matchgroup=texSection start='\\paragraph\>'		 end='\ze\s*\\\%(paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'			fold contains=@texFoldGroup,@texParaGroup,@Spell
+  syn region texSubParaZone		matchgroup=texSection start='\\subparagraph\>'		 end='\ze\s*\\\%(\%(sub\)\=paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'	fold contains=@texFoldGroup,@Spell
+  syn region texTitle			matchgroup=texSection start='\\\%(author\|title\)\>\s*{' end='}'													fold contains=@texFoldGroup,@Spell
+  syn region texAbstract		matchgroup=texSection start='\\begin\s*{\s*abstract\s*}' end='\\end\s*{\s*abstract\s*}'											fold contains=@texFoldGroup,@Spell
+ else
+  syn region texDocZone			matchgroup=texSection start='\\begin\s*{\s*document\s*}' end='\\end\s*{\s*document\s*}'											contains=@texFoldGroup,@texDocGroup,@Spell
+  syn region texPartZone		matchgroup=texSection start='\\part\>'			 end='\ze\s*\\\%(part\>\|end\s*{\s*document\s*}\)'								contains=@texFoldGroup,@texPartGroup,@Spell
+  syn region texChapterZone		matchgroup=texSection start='\\chapter\>'		 end='\ze\s*\\\%(chapter\>\|part\>\|end\s*{\s*document\s*}\)'							contains=@texFoldGroup,@texChapterGroup,@Spell
+  syn region texSectionZone		matchgroup=texSection start='\\section\>'		 end='\ze\s*\\\%(section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'					contains=@texFoldGroup,@texSectionGroup,@Spell
+  syn region texSubSectionZone		matchgroup=texSection start='\\subsection\>'		 end='\ze\s*\\\%(\%(sub\)\=section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				contains=@texFoldGroup,@texSubSectionGroup,@Spell
+  syn region texSubSubSectionZone	matchgroup=texSection start='\\subsubsection\>'		 end='\ze\s*\\\%(\%(sub\)\{,2}section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				contains=@texFoldGroup,@texSubSubSectionGroup,@Spell
+  syn region texParaZone		matchgroup=texSection start='\\paragraph\>'		 end='\ze\s*\\\%(paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'			contains=@texFoldGroup,@texParaGroup,@Spell
+  syn region texSubParaZone		matchgroup=texSection start='\\subparagraph\>'		 end='\ze\s*\\\%(\%(sub\)\=paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'	contains=@texFoldGroup,@Spell
+  syn region texTitle			matchgroup=texSection start='\\\%(author\|title\)\>\s*{' end='}'													contains=@texFoldGroup,@Spell
+  syn region texAbstract		matchgroup=texSection start='\\begin\s*{\s*abstract\s*}' end='\\end\s*{\s*abstract\s*}'											contains=@texFoldGroup,@Spell
+ endif
 else
- syn region texDocZone			matchgroup=texSection start='\\begin\s*{\s*document\s*}' end='\\end\s*{\s*document\s*}'											contains=@texFoldGroup,@texDocGroup,@Spell
- syn region texPartZone			matchgroup=texSection start='\\part\>'			 end='\ze\s*\\\%(part\>\|end\s*{\s*document\s*}\)'								contains=@texFoldGroup,@texPartGroup,@Spell
- syn region texChapterZone		matchgroup=texSection start='\\chapter\>'		 end='\ze\s*\\\%(chapter\>\|part\>\|end\s*{\s*document\s*}\)'							contains=@texFoldGroup,@texChapterGroup,@Spell
- syn region texSectionZone		matchgroup=texSection start='\\section\>'		 end='\ze\s*\\\%(section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'					contains=@texFoldGroup,@texSectionGroup,@Spell
- syn region texSubSectionZone		matchgroup=texSection start='\\subsection\>'		 end='\ze\s*\\\%(\%(sub\)\=section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				contains=@texFoldGroup,@texSubSectionGroup,@Spell
- syn region texSubSubSectionZone	matchgroup=texSection start='\\subsubsection\>'		 end='\ze\s*\\\%(\%(sub\)\{,2}section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				contains=@texFoldGroup,@texSubSubSectionGroup,@Spell
- syn region texParaZone			matchgroup=texSection start='\\paragraph\>'		 end='\ze\s*\\\%(paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'			contains=@texFoldGroup,@texParaGroup,@Spell
- syn region texSubParaZone		matchgroup=texSection start='\\subparagraph\>'		 end='\ze\s*\\\%(\%(sub\)\=paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'	contains=@texFoldGroup,@Spell
- syn region texTitle			matchgroup=texSection start='\\\%(author\|title\)\>\s*{' end='}'													contains=@texFoldGroup,@Spell
- syn region texAbstract			matchgroup=texSection start='\\begin\s*{\s*abstract\s*}' end='\\end\s*{\s*abstract\s*}'											contains=@texFoldGroup,@Spell
+ if g:tex_fold_enabled && has("folding")
+  syn region texDocZone			matchgroup=texSection start='\\begin\s*{\s*document\s*}' end='\\end\s*{\s*document\s*}'											fold contains=@texFoldGroup,@texDocGroup
+  syn region texPartZone		matchgroup=texSection start='\\part\>'			 end='\ze\s*\\\%(part\>\|end\s*{\s*document\s*}\)'								fold contains=@texFoldGroup,@texPartGroup
+  syn region texChapterZone		matchgroup=texSection start='\\chapter\>'		 end='\ze\s*\\\%(chapter\>\|part\>\|end\s*{\s*document\s*}\)'							fold contains=@texFoldGroup,@texChapterGroup
+  syn region texSectionZone		matchgroup=texSection start='\\section\>'		 end='\ze\s*\\\%(section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'					fold contains=@texFoldGroup,@texSectionGroup
+  syn region texSubSectionZone		matchgroup=texSection start='\\subsection\>'		 end='\ze\s*\\\%(\%(sub\)\=section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				fold contains=@texFoldGroup,@texSubSectionGroup
+  syn region texSubSubSectionZone	matchgroup=texSection start='\\subsubsection\>'		 end='\ze\s*\\\%(\%(sub\)\{,2}section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				fold contains=@texFoldGroup,@texSubSubSectionGroup
+  syn region texParaZone		matchgroup=texSection start='\\paragraph\>'		 end='\ze\s*\\\%(paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'			fold contains=@texFoldGroup,@texParaGroup
+  syn region texSubParaZone		matchgroup=texSection start='\\subparagraph\>'		 end='\ze\s*\\\%(\%(sub\)\=paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'	fold contains=@texFoldGroup
+  syn region texTitle			matchgroup=texSection start='\\\%(author\|title\)\>\s*{' end='}'													fold contains=@texFoldGroup
+  syn region texAbstract		matchgroup=texSection start='\\begin\s*{\s*abstract\s*}' end='\\end\s*{\s*abstract\s*}'											fold contains=@texFoldGroup
+ else
+  syn region texDocZone			matchgroup=texSection start='\\begin\s*{\s*document\s*}' end='\\end\s*{\s*document\s*}'											contains=@texFoldGroup,@texDocGroup
+  syn region texPartZone		matchgroup=texSection start='\\part\>'			 end='\ze\s*\\\%(part\>\|end\s*{\s*document\s*}\)'								contains=@texFoldGroup,@texPartGroup
+  syn region texChapterZone		matchgroup=texSection start='\\chapter\>'		 end='\ze\s*\\\%(chapter\>\|part\>\|end\s*{\s*document\s*}\)'							contains=@texFoldGroup,@texChapterGroup
+  syn region texSectionZone		matchgroup=texSection start='\\section\>'		 end='\ze\s*\\\%(section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'					contains=@texFoldGroup,@texSectionGroup
+  syn region texSubSectionZone		matchgroup=texSection start='\\subsection\>'		 end='\ze\s*\\\%(\%(sub\)\=section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				contains=@texFoldGroup,@texSubSectionGroup
+  syn region texSubSubSectionZone	matchgroup=texSection start='\\subsubsection\>'		 end='\ze\s*\\\%(\%(sub\)\{,2}section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				contains=@texFoldGroup,@texSubSubSectionGroup
+  syn region texParaZone		matchgroup=texSection start='\\paragraph\>'		 end='\ze\s*\\\%(paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'			contains=@texFoldGroup,@texParaGroup
+  syn region texSubParaZone		matchgroup=texSection start='\\subparagraph\>'		 end='\ze\s*\\\%(\%(sub\)\=paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'	contains=@texFoldGroup
+  syn region texTitle			matchgroup=texSection start='\\\%(author\|title\)\>\s*{' end='}'													contains=@texFoldGroup
+  syn region texAbstract		matchgroup=texSection start='\\begin\s*{\s*abstract\s*}' end='\\end\s*{\s*abstract\s*}'											contains=@texFoldGroup
+ endif
 endif
 
 " Bad Math (mismatched): {{{1
 if !exists("tex_no_math")
- syn match texBadMath		"\\end\s*{\s*\(array\|gathered\|bBpvV]matrix\|split\|smallmatrix\|xxalignat\)\s*}"
+ syn match texBadMath		"\\end\s*{\s*\(array\|gathered\|bBpvV]matrix\|split\|subequations\|smallmatrix\|xxalignat\)\s*}"
  syn match texBadMath		"\\end\s*{\s*\(align\|alignat\|displaymath\|displaymath\|eqnarray\|equation\|flalign\|gather\|math\|multline\|xalignat\)\*\=\s*}"
  syn match texBadMath		"\\[\])]"
 endif
@@ -344,6 +384,7 @@
  call TexNewMathZone("G","gather",1)
  call TexNewMathZone("H","math",1)
  call TexNewMathZone("I","multline",1)
+ call TexNewMathZone("J","subequations",0)
  call TexNewMathZone("K","xalignat",1)
  call TexNewMathZone("L","xxalignat",0)
 
@@ -364,7 +405,11 @@
  syn match texMathOper		"[_^=]" contained
 
  " Text Inside Math Zones: {{{2
- syn region texMathText matchgroup=texStatement start='\\\(\(inter\)\=text\|mbox\)\s*{'	end='}'	contains=@texFoldGroup,@Spell
+ if !exists("g:tex_nospell") || !g:tex_nospell
+  syn region texMathText matchgroup=texStatement start='\\\(\(inter\)\=text\|mbox\)\s*{'	end='}'	contains=@texFoldGroup,@Spell
+ else
+  syn region texMathText matchgroup=texStatement start='\\\(\(inter\)\=text\|mbox\)\s*{'	end='}'	contains=@texFoldGroup
+ endif
 
  " \left..something.. and \right..something.. support: {{{2
  syn match   texMathDelimBad	contained		"\S"
@@ -501,16 +546,15 @@
 endif
 
 " Tex Reference Zones: {{{1
-syn match texRefZone		'\\@samp\>'		skipwhite	nextgroup=texRefLabel
-syn match texRefZone		'\\nocite\>'		skipwhite	nextgroup=texRefLabel
-syn match texRefZone		'\\bibliography\>'	skipwhite	nextgroup=texRefLabel
-syn match texRefZone		'\\label\>'		skipwhite	nextgroup=texRefLabel
-syn match texRefZone		'\\\(page\|eq\)ref\>'	skipwhite	nextgroup=texRefLabel
-syn match texRefZone		'\\v\=ref'		skipwhite	nextgroup=texRefLabel
-syn match texRefZone		'\\cite\%([tp]\*\=\)\='	skipwhite	nextgroup=texCiteOption,texCite
-syn region texRefLabel		contained matchgroup=Delimiter start='{'	end='}'	contains=@texRefGroup
-syn region texCiteOption	contained matchgroup=Delimiter start='\['	end=']'	contains=@Spell,@texRefGroup,@texMathZones,texRefZone	nextgroup=texCiteOption,texCite
-syn region texCite		contained matchgroup=Delimiter start='{'	end='}'	contains=@texRefGroup,texCite
+syn region texZone		matchgroup=texStatement start="@samp{"			end="}\|%stopzone\>"	contains=@texRefGroup
+syn region texRefZone		matchgroup=texStatement start="\\nocite{"		end="}\|%stopzone\>"	contains=@texRefGroup
+syn region texRefZone		matchgroup=texStatement start="\\bibliography{"		end="}\|%stopzone\>"	contains=@texRefGroup
+syn region texRefZone		matchgroup=texStatement start="\\label{"		end="}\|%stopzone\>"	contains=@texRefGroup
+syn region texRefZone		matchgroup=texStatement start="\\\(page\|eq\)ref{"	end="}\|%stopzone\>"	contains=@texRefGroup
+syn region texRefZone		matchgroup=texStatement start="\\v\=ref{"		end="}\|%stopzone\>"	contains=@texRefGroup
+syn match  texRefZone		'\\cite\%([tp]\*\=\)\=' nextgroup=texRefOption,texCite
+syn region texRefOption	contained	matchgroup=Delimiter start='\[' end=']'		contains=@texRefGroup,texRefZone	nextgroup=texRefOption,texCite
+syn region texCite	contained	matchgroup=Delimiter start='{' end='}'		contains=@texRefGroup,texRefZone,texCite
 
 " Handle newcommand, newenvironment : {{{1
 syn match  texNewCmd				"\\newcommand\>"			nextgroup=texCmdName skipwhite skipnl
@@ -556,12 +600,14 @@
  if s:tex_conceal =~ 'm'
   let s:texMathList=[
     \ ['|'		, '‖'],
+    \ ['aleph'		, 'ℵ'],
     \ ['angle'		, '∠'],
     \ ['approx'		, '≈'],
     \ ['ast'		, '∗'],
     \ ['asymp'		, '≍'],
     \ ['backepsilon'	, '∍'],
     \ ['backsimeq'	, '≃'],
+    \ ['backslash'	, '∖'],
     \ ['barwedge'	, '⊼'],
     \ ['because'	, '∵'],
     \ ['between'	, '≬'],
@@ -592,9 +638,11 @@
     \ ['circlearrowright', '↻'],
     \ ['circledast'	, '⊛'],
     \ ['circledcirc'	, '⊚'],
+    \ ['clubsuit'	, '♣'],
     \ ['complement'	, '∁'],
     \ ['cong'		, '≅'],
     \ ['coprod'		, '∐'],
+    \ ['copyright'	, '©'],
     \ ['cup'		, '∪'],
     \ ['Cup'		, '⋓'],
     \ ['curlyeqprec'	, '⋞'],
@@ -603,6 +651,7 @@
     \ ['curlywedge'	, '⋏'],
     \ ['dashv'		, '⊣'],
     \ ['diamond'	, '⋄'],
+    \ ['diamondsuit'	, '♢'],
     \ ['div'		, '÷'],
     \ ['doteq'		, '≐'],
     \ ['doteqdot'	, '≑'],
@@ -621,8 +670,10 @@
     \ ['eqslantgtr'	, '⪖'],
     \ ['eqslantless'	, '⪕'],
     \ ['equiv'		, '≡'],
+    \ ['ell'		, 'ℓ'],
     \ ['exists'		, '∃'],
     \ ['fallingdotseq'	, '≒'],
+    \ ['flat'		, '♭'],
     \ ['forall'		, '∀'],
     \ ['ge'		, '≥'],
     \ ['geq'		, '≥'],
@@ -633,11 +684,14 @@
     \ ['gtreqless'	, '⋛'],
     \ ['gtrless'	, '≷'],
     \ ['gtrsim'		, '≳'],
+    \ ['hbar'		, 'ℏ'],
+    \ ['heartsuit'	, '♡'],
     \ ['hookleftarrow'	, '↩'],
     \ ['hookrightarrow'	, '↪'],
     \ ['iiint'		, '∭'],
     \ ['iint'		, '∬'],
     \ ['Im'		, 'ℑ'],
+    \ ['imath'		, 'ɩ'],
     \ ['in'		, '∈'],
     \ ['infty'		, '∞'],
     \ ['int'		, '∫'],
@@ -650,7 +704,7 @@
     \ ['left('		, '('],
     \ ['left\['		, '['],
     \ ['left\\{'	, '{'],
-    \ ['Leftrightarrow'	, '⇔'],
+    \ ['leftrightarrow'	, '⇔'],
     \ ['leftrightsquigarrow', '↭'],
     \ ['leftthreetimes'	, '⋋'],
     \ ['leq'		, '≤'],
@@ -667,6 +721,7 @@
     \ ['mid'		, '∣'],
     \ ['mp'		, '∓'],
     \ ['nabla'		, '∇'],
+    \ ['natural'	, '♮'],
     \ ['ncong'		, '≇'],
     \ ['nearrow'	, '↗'],
     \ ['ne'		, '≠'],
@@ -705,6 +760,7 @@
     \ ['oslash'		, '⊘'],
     \ ['otimes'		, '⊗'],
     \ ['owns'		, '∋'],
+    \ ['P'	        , '¶'],
     \ ['partial'	, '∂'],
     \ ['perp'		, '⊥'],
     \ ['pitchfork'	, '⋔'],
@@ -716,6 +772,7 @@
     \ ['precnapprox'	, '⪹'],
     \ ['precneqq'	, '⪵'],
     \ ['precsim'	, '≾'],
+    \ ['prime'		, '′'],
     \ ['prod'		, '∏'],
     \ ['propto'		, '∝'],
     \ ['rceil'		, '⌉'],
@@ -732,9 +789,12 @@
     \ ['risingdotseq'	, '≓'],
     \ ['rmoustache'     , '╮'],
     \ ['rtimes'		, '⋊'],
+    \ ['S'	        , '§'],
     \ ['searrow'	, '↘'],
     \ ['setminus'	, '∖'],
+    \ ['sharp'		, '♯'],
     \ ['sim'		, '∼'],
+    \ ['spadesuit'	, '♠'],
     \ ['sphericalangle'	, '∢'],
     \ ['sqcap'		, '⊓'],
     \ ['sqcup'		, '⊔'],
@@ -767,6 +827,7 @@
     \ ['times'		, '×'],
     \ ['to'		, '→'],
     \ ['top'		, '⊤'],
+    \ ['triangle'	, '∆'],
     \ ['triangleleft'	, '⊲'],
     \ ['trianglelefteq'	, '⊴'],
     \ ['triangleq'	, '≜'],
@@ -788,6 +849,7 @@
     \ ['vee'		, '∨'],
     \ ['Vvdash'		, '⊪'],
     \ ['wedge'		, '∧'],
+    \ ['wp'		, '℘'],
     \ ['wr'		, '≀']]
   for texmath in s:texMathList
    if texmath[0] =~ '\w$'
@@ -804,6 +866,27 @@
    syn match texMathSymbol '\\gg\>'			contained conceal cchar=⟫
    syn match texMathSymbol '\\ll\>'			contained conceal cchar=⟪
   endif
+
+  syn match texMathSymbol '\\hat{a}' contained conceal cchar=â
+  syn match texMathSymbol '\\hat{A}' contained conceal cchar=Â
+  syn match texMathSymbol '\\hat{c}' contained conceal cchar=ĉ
+  syn match texMathSymbol '\\hat{C}' contained conceal cchar=Ĉ
+  syn match texMathSymbol '\\hat{e}' contained conceal cchar=ê
+  syn match texMathSymbol '\\hat{E}' contained conceal cchar=Ê
+  syn match texMathSymbol '\\hat{g}' contained conceal cchar=ĝ
+  syn match texMathSymbol '\\hat{G}' contained conceal cchar=Ĝ
+  syn match texMathSymbol '\\hat{i}' contained conceal cchar=î
+  syn match texMathSymbol '\\hat{I}' contained conceal cchar=Î
+  syn match texMathSymbol '\\hat{o}' contained conceal cchar=ô
+  syn match texMathSymbol '\\hat{O}' contained conceal cchar=Ô
+  syn match texMathSymbol '\\hat{s}' contained conceal cchar=ŝ
+  syn match texMathSymbol '\\hat{S}' contained conceal cchar=Ŝ
+  syn match texMathSymbol '\\hat{u}' contained conceal cchar=û
+  syn match texMathSymbol '\\hat{U}' contained conceal cchar=Û
+  syn match texMathSymbol '\\hat{w}' contained conceal cchar=ŵ
+  syn match texMathSymbol '\\hat{W}' contained conceal cchar=Ŵ
+  syn match texMathSymbol '\\hat{y}' contained conceal cchar=ŷ
+  syn match texMathSymbol '\\hat{Y}' contained conceal cchar=Ŷ
  endif
 
  " Greek {{{2
@@ -855,8 +938,8 @@
 
  " Superscripts/Subscripts {{{2
  if s:tex_conceal =~ 's'
-  syn region texSuperscript	matchgroup=Delimiter start='\^{'	end='}'	contained concealends contains=texSuperscripts,texStatement,texSubscript,texSuperscript,texMathMatcher
-  syn region texSubscript	matchgroup=Delimiter start='_{'		end='}'	contained concealends contains=texSubscripts,texStatement,texSubscript,texSuperscript,texMathMatcher
+  syn region texSuperscript	matchgroup=Delimiter start='\^{'	skip="\\\\\|\\[{}]" end='}'	contained concealends contains=texSpecialChar,texSuperscripts,texStatement,texSubscript,texSuperscript,texMathMatcher
+  syn region texSubscript	matchgroup=Delimiter start='_{'		skip="\\\\\|\\[{}]" end='}'	contained concealends contains=texSpecialChar,texSubscripts,texStatement,texSubscript,texSuperscript,texMathMatcher
   fun! s:SuperSub(group,leader,pat,cchar)
     exe 'syn match '.a:group." '".a:leader.a:pat."' contained conceal cchar=".a:cchar
     exe 'syn match '.a:group."s '".a:pat."' contained conceal cchar=".a:cchar.' nextgroup='.a:group.'s'
@@ -980,18 +1063,23 @@
      endfor
    endfun
    "                  \`  \'  \^  \"  \~  \.  \c  \H  \k  \r  \u  \v
-   call s:Accents('a','à','á','â','ä','ã',' ',' ',' ','ą','å','ă','ă')
-   call s:Accents('A','À','Á','Â','Ä','Ã',' ',' ',' ','Ą','Å','Ă','Ă')
+   call s:Accents('a','à','á','â','ä','ã','ȧ',' ',' ','ą','å','ă','ă')
+   call s:Accents('A','À','Á','Â','Ä','Ã','Ȧ',' ',' ','Ą','Å','Ă','Ă')
    call s:Accents('c',' ','ć','ĉ',' ',' ','ċ','ç',' ',' ',' ',' ','č')
    call s:Accents('C',' ','Ć','Ĉ',' ',' ','Ċ','Ç',' ',' ',' ',' ','Č')
    call s:Accents('d',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','ď')
    call s:Accents('D',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','Ď')
    call s:Accents('e','è','é','ê','ë','ẽ','ė','ȩ',' ','ę',' ','ĕ','ě')
    call s:Accents('E','È','É','Ê','Ë','Ẽ','Ė','Ȩ',' ','Ę',' ','Ĕ','Ě')
-   call s:Accents('g',' ',' ',' ',' ',' ','ġ','ģ',' ',' ',' ','ğ',' ')
-   call s:Accents('G',' ',' ',' ',' ',' ','Ġ','Ģ',' ',' ',' ','Ğ',' ')
+   call s:Accents('g',' ','ǵ','ĝ',' ',' ','ġ','ģ',' ',' ',' ','ğ',' ')
+   call s:Accents('G',' ','Ǵ','Ĝ',' ',' ','Ġ','Ģ',' ',' ',' ','Ğ',' ')
+   call s:Accents('h',' ',' ','ĥ',' ',' ',' ',' ',' ',' ',' ',' ','ȟ')
+   call s:Accents('H',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','Ȟ')
    call s:Accents('i','ì','í','î','ï','ĩ','į',' ',' ',' ',' ','ĭ',' ')
    call s:Accents('I','Ì','Í','Î','Ï','Ĩ','İ',' ',' ',' ',' ','Ĭ',' ')
+   call s:Accents('J',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','ǰ')
+   call s:Accents('k',' ',' ',' ',' ',' ',' ','ķ',' ',' ',' ',' ',' ')
+   call s:Accents('K',' ',' ',' ',' ',' ',' ','Ķ',' ',' ',' ',' ',' ')
    call s:Accents('l',' ','ĺ','ľ',' ',' ',' ','ļ',' ',' ',' ',' ','ľ')
    call s:Accents('L',' ','Ĺ','Ľ',' ',' ',' ','Ļ',' ',' ',' ',' ','Ľ')
    call s:Accents('n',' ','ń',' ',' ','ñ',' ','ņ',' ',' ',' ',' ','ň')
@@ -1000,12 +1088,12 @@
    call s:Accents('O','Ò','Ó','Ô','Ö','Õ','Ȯ',' ','Ő','Ǫ',' ','Ŏ',' ')
    call s:Accents('r',' ','ŕ',' ',' ',' ',' ','ŗ',' ',' ',' ',' ','ř')
    call s:Accents('R',' ','Ŕ',' ',' ',' ',' ','Ŗ',' ',' ',' ',' ','Ř')
-   call s:Accents('s',' ','ś','ŝ',' ',' ',' ','ş',' ',' ',' ',' ','š')
+   call s:Accents('s',' ','ś','ŝ',' ',' ',' ','ş',' ','ȿ',' ',' ','š')
    call s:Accents('S',' ','Ś','Ŝ',' ',' ',' ','Ş',' ',' ',' ',' ','Š')
    call s:Accents('t',' ',' ',' ',' ',' ',' ','ţ',' ',' ',' ',' ','ť')
    call s:Accents('T',' ',' ',' ',' ',' ',' ','Ţ',' ',' ',' ',' ','Ť')
-   call s:Accents('u','ù','ú','û','ü','ũ',' ',' ','ű',' ','ů','ŭ',' ')
-   call s:Accents('U','Ù','Ú','Û','Ü','Ũ',' ',' ','Ű',' ','Ů','Ŭ',' ')
+   call s:Accents('u','ù','ú','û','ü','ũ',' ',' ','ű','ų','ů','ŭ','ǔ')
+   call s:Accents('U','Ù','Ú','Û','Ü','Ũ',' ',' ','Ű','Ų','Ů','Ŭ','Ǔ')
    call s:Accents('w',' ',' ','ŵ',' ',' ',' ',' ',' ',' ',' ',' ',' ')
    call s:Accents('W',' ',' ','Ŵ',' ',' ',' ',' ',' ',' ',' ',' ',' ')
    call s:Accents('y','ỳ','ý','ŷ','ÿ','ỹ',' ',' ',' ',' ',' ',' ',' ')
@@ -1068,6 +1156,7 @@
    HiLink texError		Error
   endif
 
+  HiLink texCite		texRefZone
   HiLink texDefCmd		texDef
   HiLink texDefName		texDef
   HiLink texDocType		texCmdName
@@ -1092,7 +1181,6 @@
    HiLink texMathZoneV		texMath
    HiLink texMathZoneZ		texMath
   endif
-  HiLink texRefZone		Identifier
   HiLink texSectionMarker	texCmdName
   HiLink texSectionName		texSection
   HiLink texSpaceCode		texStatement
@@ -1101,7 +1189,6 @@
   HiLink texTypeStyle		texType
 
    " Basic TeX highlighting groups
-  HiLink texCite		Special
   HiLink texCmdArgs		Number
   HiLink texCmdName		Statement
   HiLink texComment		Comment
@@ -1117,7 +1204,7 @@
   HiLink texNewCmd		Statement
   HiLink texNewEnv		Statement
   HiLink texOption		Number
-  HiLink texRefLabel		Special
+  HiLink texRefZone		Special
   HiLink texSection		PreCondit
   HiLink texSpaceCodeChar	Special
   HiLink texSpecialChar		SpecialChar