## LaTeX forum ⇒ BibTeX, biblatex and biber ⇒ citing multiple versions of a reference in one cite Topic is solved

Information and discussion about BiBTeX - the bibliography tool for LaTeX documents.
Kreuz Elf
Posts: 10
Joined: Thu Mar 04, 2021 7:33 pm

### citing multiple versions of a reference in one cite

Hey. For the journal "Angewandte Chemie" (german, short Angew. Chem.) there are english Versions to each article, which are published in the separate journal "Angewandte Chemie Internationale Edition" (short: Angew. Chem. Int. Ed.). My Prof is holding on to citing those articles in a way, that in the continuos text there will be just the number of the reference, but in the bibliography there shall be a kind of enumeration with both versions like this:

[1] a) A. A. L. Michalchuk, F. Emmerling, Zeitaufgelöste In-Situ-Untersuchungen von mechanochemischen Reaktionen, Angew. Chem., 2022, 134, e202117270.
b) A. A. L. Michalchuk, F. Emmerling, Time-Resolved In Situ Monitoring of Mechanochemical Reactions, Angew. Chem. Int. Ed., 2022, 61, e202117270.

the bibtex for this being:
@article{michalchuk2022zeitaufgeloste,
title={Zeitaufgel{\"o}ste In-Situ-Untersuchungen von mechanochemischen Reaktionen},
author={Michalchuk, Adam AL and Emmerling, Franziska},
journal={Angewandte Chemie},
volume={134},
number={21},
pages={e202117270},
year={2022},
publisher={Wiley Online Library}
}
@article{michalchuk2022time,
title={Time-Resolved In Situ Monitoring of Mechanochemical Reactions},
author={Michalchuk, Adam AL and Emmerling, Franziska},
journal={Angewandte Chemie International Edition},
volume={61},
number={21},
pages={e202117270},
year={2022},
publisher={Wiley Online Library}
}

I haven't yet found a way to do this in an automated way with biblatex. Please tell me there is one. Maybe even code it into the .bib-file itself.

LaTeXguide.org • LaTeX-Cookbook.net

Kreuz Elf
Posts: 10
Joined: Thu Mar 04, 2021 7:33 pm

### citing multiple versions of a reference in one cite  Topic is solved

Well, after searching really long I finally found a way to get this done myself. The solution is called bibentrysets.

With the command
\defbibentryset
you can group multiple entries of the bibfile together as a set and give this set a new key for further reference. This new key has to go in the first brackets; the "real" keys of the original bibentries have to go into the second brackets and have to be comma-seperated. That should give the desired outcome. I present here a minimal example. It is important to add the "subentry" attribute when using the biblatex package. If I don't add this attribute the references will still appear but will be interpunctuated just with a semicolon; there won't be alphabetical sorting with a) and b). All other attributes are optional and just part of my preferred style.

\documentclass[ngerman,a4paper]{scrartcl}\usepackage[T1]{fontenc}\usepackage[utf8]{inputenc}\usepackage[ngerman]{babel}\usepackage[subentry, style=numeric-comp, autocite=superscript, sorting=none]{biblatex}\bibliography{lit.bib}\defbibentryset{angew-michalchuk}{michalchuk2022zeitaufgeloste,michalchuk2022time}\begin{document} My referenced text\autocite{angew-michalchuk} \printbibliography\end{document}

lit.bib:
@article{michalchuk2022zeitaufgeloste,
title={Zeitaufgelöste In-Situ-Untersuchungen von mechanochemischen Reaktionen},
author={Michalchuk, Adam AL and Emmerling, Franziska},
journal={Angewandte Chemie},
volume={134},
number={21},
pages={e202117270},
year={2022},
publisher={Wiley Online Library}
}
@article{michalchuk2022time,
title={Time-Resolved In Situ Monitoring of Mechanochemical Reactions},
author={Michalchuk, Adam AL and Emmerling, Franziska},
journal={Angewandte Chemie International Edition},
volume={61},
number={21},
pages={e202117270},
year={2022},
publisher={Wiley Online Library}
}

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