# Biblatex equivalent to labeled multibib with working hyperref

I have a document using a labeled version of multibib, i.e. \usepackage[labeled]{multibib}. However, hyperref does not work on the cites and according to "Why does hyperlink point to a wrong page when option “labeled” for multibib is activated?", it seems one should use biblatex.

How can I achieve the same result as \usepackage[labeled]{multibib} using biblatex and have hyperref work correctly?

To be concrete, how can the minimal example document below be translated to biblatex?

\documentclass{article}
\usepackage[labeled]{multibib}
\usepackage{hyperref}

\begin{filecontents}{A.bbl}
\begin{thebibliography}{1}
\bibitem{slam2001}
Thomas Ball and Sriram~K. Rajamani.
\newblock Automatically validating temporal safety properties of interfaces.
\newblock In {\em Proceedings of the 8th International SPIN Workshop on Model
Checking of Software}, 2001.
\end{thebibliography}
\end{filecontents}

\begin{filecontents}{B.bbl}
\begin{thebibliography}{1}
\bibitem{blast2007}
Dirk Beyer, Thomas~A. Henzinger, Ranjit Jhala, and Rupak Majumdar.
\newblock The software model checker blast: Applications to software
engineering.
\newblock {\em International Journal on Software Tools for Technology
Transfer}, 2007.
\end{thebibliography}
\end{filecontents}

\newcites{A,B}{Primary,Secondary}

\begin{document}
CiteA~\citeA{slam2001}, CiteB~\citeB{blast2007}

\bibliographyA{refs}
\bibliographyB{refs}
\end{document}


The example produces the following using pdflatex where the hyperref does not work correctly on cites:

You could try the following.

We will presume we have two .bib files: \jobname-1.bib and \jobname-2.bib, here created via filecontents*

\begin{filecontents*}{\jobname-1.bib}
@inproceedings{slam2001,
author    = {Thomas Ball and Sriram K. Rajamani},
title     = {Automatically Validating Temporal Safety Properties of Interfaces},
booktitle = {Proceedings of the 8th International SPIN Workshop on Model Checking of Software},
editor    = {Matthew Dwyer},
date      = {2001},
}
\end{filecontents*}
\begin{filecontents*}{\jobname-2.bib}
@article{blast2007,
author    = {Dirk Beyer and Thomas A. Henzinger and Ranjit Jhala and Rupak Majumdar},
title     = {The software model checker {BLAST}},
subtitle  = {Applications to software engineering},
journal   = {International Journal on Software Tools for Technology Transfer},
date      = {2007},
volume    = {9},
}
\end{filecontents*}



These two files will be added to different keywords with Biber's sourcemapping

\DeclareSourcemap{
\maps[datatype=bibtex]{
\map{
\perdatasource{\jobname-1.bib}
\step[fieldset=keywords, fieldvalue={, primary}, append]
}
\map{
\perdatasource{\jobname-2.bib}
\step[fieldset=keywords, fieldvalue={, secondary}, append]
}
}
}


\jobname-1.bib gets the keyword primary, \jobname-2.bib gets secondary. (I chose primary and secondary here, but you can pick anything you like. Just make sure that these keywords are not used for anything else in your .bib file or in your bibliography setup.) Note that the names of the .bib files are 'hard-coded' in \perdatasource. If you have different files names, you need to adapt the code accordingly.

If you insist on continuous numbering (i.e. do not want the second bibliography to start at [B1]) we'll need to put an end to biblatex's auto-detection of resetnumbers in case labelprefix is used:

\makeatletter
\providerobustcmd*{\blx@kv@defkey}{\define@key}

\blx@kv@defkey{blx@bib1}{noresetnumbersforlabelprefix}[true]{%
\ifstrequal{#1}{true}
{\let\blx@saved@refcontext@labelprefix\blx@refcontext@labelprefix
\let\blx@saved@refcontext@labelprefix\blx@refcontext@labelprefix@real
\let\blx@refcontext@labelprefix\@empty
\let\blx@refcontext@labelprefix@real\@empty}
{}}

\blx@kv@defkey{blx@bib2}{noresetnumbersforlabelprefix}[true]{%
\ifstrequal{#1}{true}
{\let\blx@refcontext@labelprefix\blx@saved@refcontext@labelprefix
\let\blx@refcontext@labelprefix@real\blx@saved@refcontext@labelprefix}
{}}
\makeatother


All the entries can be cited via \cite (so the keyword does not matter, there is not \citeA or \citeB).

The bibliography is printed with

\newrefcontext[labelprefix=A]
\printbibliography[keyword=primary, noresetnumbersforlabelprefix, title=Primary]
\newrefcontext[labelprefix=B]
\printbibliography[keyword=secondary, noresetnumbersforlabelprefix, title=Secondary]


That is the first bibliography only contains entries with the keyword primary (effectively that is entries from \joabname-1.bib), while the second contains secondary entries (\jobname-2.bib). I have added prefixes to the labels via the labelprefix option of \newrefcontext (that comes closer to your example). The heading/title is controlled by the title option.

MWE

\documentclass{article}
\usepackage[style=numeric, defernumbers=true, backend=biber, maxnames=999]{biblatex}
\usepackage{hyperref}

\DeclareSourcemap{
\maps[datatype=bibtex]{
\map{
\perdatasource{\jobname-1.bib}
\step[fieldset=keywords, fieldvalue={, primary}, append]
}
\map{
\perdatasource{\jobname-2.bib}
\step[fieldset=keywords, fieldvalue={, secondary}, append]
}
}
}

\makeatletter
\providerobustcmd*{\blx@kv@defkey}{\define@key}

\blx@kv@defkey{blx@bib1}{noresetnumbersforlabelprefix}[true]{%
\ifstrequal{#1}{true}
{\let\blx@saved@refcontext@labelprefix\blx@refcontext@labelprefix
\let\blx@saved@refcontext@labelprefix\blx@refcontext@labelprefix@real
\let\blx@refcontext@labelprefix\@empty
\let\blx@refcontext@labelprefix@real\@empty}
{}}

\blx@kv@defkey{blx@bib2}{noresetnumbersforlabelprefix}[true]{%
\ifstrequal{#1}{true}
{\let\blx@refcontext@labelprefix\blx@saved@refcontext@labelprefix
\let\blx@refcontext@labelprefix@real\blx@saved@refcontext@labelprefix}
{}}
\makeatother

\begin{filecontents*}{\jobname-1.bib}
@inproceedings{slam2001,
author    = {Thomas Ball and Sriram K. Rajamani},
title     = {Automatically Validating Temporal Safety Properties of Interfaces},
booktitle = {Proceedings of the 8th International SPIN Workshop on Model Checking of Software},
editor    = {Matthew Dwyer},
date      = {2001},
}
@article{blast2008,
author    = {Dirk Beyer and Thomas A. Henzinger and Ranjit Jhala and Rupak Majumdar},
title     = {BLAST II},
journal   = {International Journal on Software Tools for Technology Transfer},
date      = {2008},
volume    = {18},
}
\end{filecontents*}
\begin{filecontents*}{\jobname-2.bib}
@article{blast2007,
author    = {Dirk Beyer and Thomas A. Henzinger and Ranjit Jhala and Rupak Majumdar},
title     = {The software model checker {BLAST}},
subtitle  = {Applications to software engineering},
journal   = {International Journal on Software Tools for Technology Transfer},
date      = {2007},
volume    = {9},
}
@inproceedings{slam2002,
author    = {Thomas Ball and Sriram K. Rajamani},
title     = {Interfaces are Cool!},
booktitle = {Proceedings of the 8th International SPIN Workshop on Model Checking of Software},
date      = {2002},
}
\end{filecontents*}

\begin{document}
CiteA~\cite{slam2001,slam2002}, CiteB~\cite{blast2007,blast2008}

\newrefcontext[labelprefix=A]
\printbibliography[keyword=primary, noresetnumbersforlabelprefix, title=Primary]
\newrefcontext[labelprefix=B]
\printbibliography[keyword=secondary, noresetnumbersforlabelprefix, title=Secondary]
\end{document}


Hyperlinking seemed to work rather well here.

edit The answer was updated to work with more recent versions of biblatex (tested with v3.14, but it should work from v3.12 onward). If you are using an ancient version of biblatex (v3.3 or below), please refer to the edit history.

• I now have your example working. However, is it possible to have Primary use numbers [1, ..., n] and Secondary [n+1, ..., m] like in the original example showint CiteA [A1] and CiteB [B2]? – foens Apr 15 '14 at 8:08
• @foens You have to replace all occurrences of \jobname-1(.bib) in the MWE by primary(.bib) and all of \jobname-2(.bib) by secondary(.bib). You furthermore cannot use the keywords primary and secondary in any other context (if you want to, you need to replace every occurrence of primary and secondary above by other appropriate keywords). – moewe Apr 17 '14 at 16:35
• @alexis Oh yeah. Thanks for pointing that out. Some internals changed that meant that the complete answer wasn't working as intended any more (and indeed the \makeatletter...\makeatother code does nothing in newer versions of biblatex). That should be fixed now, the code should once again produce the result from the screenshot. – moewe Jul 23 at 6:05
• @alexis Yes. Usually when labelprefix is active, biblatex automatically resets the numbering of the bibliography entries in each new bibliography (see also my very first comment above). The code in \makeatletter...\makeatother was specifically put in to avoid that. Because the MWE uses defernumbers you will need an additional LaTeX run to get correctly numbered citations and bibliography entries. Sometimes when things go wrong or you experiment with many options and settings, defernumbers numbering can 'get stuck' with wrong numbers: possibly all zeros, possibly something more subtle – moewe Jul 24 at 6:43
• @alexis ... In those cases it helps to delete the .aux, .bbl and .bcf file and recompile. That shouldn't happen often. Instead of \newrefcontext[labelprefix=A] \printbibliography[keyword=primary, title=Primary] \newrefcontext[] \printbibliography[keyword=secondary, title=Secondary, resetnumbers=true] you could also say \begin{refcontext}[labelprefix=A] \printbibliography[keyword=primary, title=Primary] \end{refcontext} \printbibliography[keyword=secondary, title=Secondary, resetnumbers=true]. Which feels more natural will depend on your situation. – moewe Jul 24 at 6:49