LaTeX forum ⇒ BibTeX, biblatex and biberBibitem entries in BibTeX? Topic is solved

Information and discussion about BiBTeX - the bibliography tool for LaTeX documents.
Jakob123
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Joined: Wed Apr 07, 2021 2:08 pm

Bibitem entries in BibTeX?

Postby Jakob123 » Wed Apr 07, 2021 2:16 pm

Hello,

I'm using BibTeX to cite a couple of journal papers.
However, I would like to add a \bibitem that is not a BibTeX item, which does not seem to be compatible with my BibTeX. How can I accomplish this?

Kind regards,
Jakob
Last edited by Jakob123 on Wed Apr 07, 2021 5:32 pm, edited 1 time in total.

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Ijon Tichy
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Joined: Mon Dec 24, 2018 10:12 am

Postby Ijon Tichy » Wed Apr 07, 2021 2:24 pm

You could edit the generated *.bbl file. However, I would recommend to add a proper entry to bibliography.bib.

Jakob123
Posts: 3
Joined: Wed Apr 07, 2021 2:08 pm

Postby Jakob123 » Wed Apr 07, 2021 2:27 pm

Ijon Tichy wrote:You could edit the generated *.bbl file. However, I would recommend to add a proper entry to bibliography.bib.


Hello, with proper entry in bibliography.bib, are you refering to e.g.:

\bibitem{ref1}

and then in the text \cite{ref1}?

Tried this and it gives a question mark in the text and no entry in the bibliography list.

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Ijon Tichy
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Joined: Mon Dec 24, 2018 10:12 am

Postby Ijon Tichy » Wed Apr 07, 2021 3:27 pm

You cannot add \bibitem commands into *.bib files. The entries of *.bib files are always database entries like @book{…}, @article{…}, @misc{…}. See the aleady existing entries of the file or an introduction to BibTeX for the syntax.

\bibitem commands can be found in the *.bbl file generated by BibTeX. But note, if you run BibTex again, manual changes of the *.bbl will be lost. So it would almost ever be better to add a proper entry to the database (*.bib-file) instead of manipulate the generated *.bbl file.

Why do you want to add a \bibitem manually?

BTW: I would almost always recommend to use biblatex and biber instead of BibTeX.

For a more detailed answer I would need a more detailed questions, i.e., a Infominimal working example.

Jakob123
Posts: 3
Joined: Wed Apr 07, 2021 2:08 pm

Postby Jakob123 » Wed Apr 07, 2021 3:46 pm

Hello,

Sorry, I am a beginner to overleaf and this was new to me. Will below suffice as a minimum working example?
Essentially I am mainly using papers with possibility of BibTex citation
However, I would like to cite to a webside that does not have a BibTex cite option.
Therefore, I need to somehow add it to be a part of my bibliography.
Last edited by Jakob123 on Wed Apr 07, 2021 5:13 pm, edited 1 time in total.

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Ijon Tichy
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Joined: Mon Dec 24, 2018 10:12 am

Postby Ijon Tichy » Wed Apr 07, 2021 4:17 pm

With BibTeX it depends on the \bibliographystyle whether online references are supported. Often you can use either @misc or @manual to reference online.

With biblatex almost all styles support @online, e.g.:
\begin{filecontents}[force]{\jobname.bib}
@article{erickson2009size,
  title={Size and shape of protein molecules at the nanometer level determined by sedimentation, gel filtration, and electron microscopy},
  author={Erickson, Harold P},
  journal={Biological procedures online},
  volume={11},
  number={1},
  pages={32--51},
  year={2009},
  publisher={BioMed Central},
}
@online{Jakob2021,
  title={Bibitem entries in BibTeX?},
  author={Jakob},
  date={2021-04-07},
  url={https://latex.org/forum/viewtopic.php?f=50&t=34161&p=114882#p114877},
  urldate={2021-04-07}
}
\end{filecontents}
\documentclass{article}
\usepackage{csquotes}
\usepackage{biblatex}
\addbibresource{\jobname.bib}
\begin{document}

\section{Section 1}

This is a minimum working example with a BibTex reference \cite{erickson2009size}. Now I want to refer to a website like \cite{Jakob2021}.

\printbibliography

\end{document}

Note, I've used filecontents to add the database into the main file and make the Run LaTeX here button work. So you can easily see the result. However on Overleaf or a local TeX installation you can always use a separate bib-file as usual.

See the biblatex manual for more information how to use the package and which styles are build in. See the topic link at the biblatex catalogue page for more styles.


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