Dear All (and thanks once more for the incredible help!) The attached example uses three link mechanisms inside a document: Linking to a section, to a reference, and a tagged enumeration. All of them work in the generated PDF, but the latter two fail in the generated HTML file. I have tried various bibliography implementations, none of which work; the one below was the shortest I could find. Thanks! Matthias \setupinteraction [ color=red, menu=on, state=start, page=yes ] \tolerant\def\startbibitem[#1]#*[#2]% LMTX! {\doifsomethingelse{#2}% {\startBibItem[reference={#1},title={#2}]}% {\startBibItem[reference={#1},title={#1}]}% } \def\stopbibitem{\stopBibItem} \setupexternalfigures[location=default] \setupbackend[export=yes,xhtml=yes] \setupexport [svgstyle=mathtest-style, hyphen=yes, width=60em] \definedescription[BibItem][ width=broad, margin=4em, indenting={no}, indentnext=no, alternative=hanging, hang=1, headcommand=\gobbleoneargument, align=flushleft ] \def\bibitemrule{\noindentation\vrule height0.5pt width4em depth0pt\thinspace} \definereferenceformat [cite] [type=title,left={},right={}] \definereferenceformat [bibpage] [type=page] \setupenumerations [alternative=hanging, width=fit, right={~}, way=bysection, prefix=chapter, distance=0.5em, prefixsegments={chapter:section}] \defineenumeration[Theorem] [alternative=serried, width=fit, distance=.5\emwidth, text=Theorem, style=italic, title=yes, titlestyle=normal, prefix=yes, headcommand=\groupedcommand{}{.} ] \defineenumeration [Proof] [alternative=serried, width=fit, distance=\emwidth, text=Proof, number=no, headstyle=italic, headcommand=\groupedcommand{}{.}, title=yes, titlestyle=normal, closesymbol=\mathqed] \starttext \startsection[title=Introduction] \startparagraph The Bibliography is \in{here}[sec:biblio]. \stopparagraph \startTheorem[thm:euler] \startformula e^{\pi i}+1=0 \ . \stopformula \stopTheorem \startProof See \cite[Euler1777]. \stopProof % make some fluff so that links have to do some work \dorecurse{5} {\startparagraph \input knuth \stopparagraph } \startparagraph From \in{Theorem}[thm:euler] it follows that \startformula e^{\pi i/2}=i \ . \stopformula \stopparagraph \stopsection \startsection[title=References, reference={sec:biblio}] \startbibitem[Euler1777] Euler: \emph{Collected Works.} \stopbibitem \stopsection \stoptext