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I write my bibliography items like this

\bibitem{RS80} M.~Reed and B.~Simon, Methods of Modern 
    Mathematical Physics I, Functional Analysis, Academic Press, 
    New York, 1980.

and I would like \cite{RS80} to show [RS80] and not the corresponding number, e.g. [1]. (I have too many references at this point and numeric citation call-outs are starting to get very confusing.)

moewe
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  • Have a look here: a) https://de.overleaf.com/learn/latex/Articles/Getting_started_with_BibLaTeX, b) https://tex.stackexchange.com/questions/13509/biblatex-in-a-nutshell-for-beginners, c) https://de.overleaf.com/learn/latex/Bibliography_management_with_biblatex , just to mention a few. Try also searching in this place, e.g.: https://tex.stackexchange.com/search?q=%5Bbiblatex%5D+style . – MS-SPO Mar 14 '24 at 10:24
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    Welcome to TeX.SE. Please confirm that you use biblatex (and, possibly, biber). Or are you generating the formatted bibliographic entries -- such as the one shown in your query -- by hand? Please advise. – Mico Mar 14 '24 at 11:04

1 Answers1

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You wrote,

I write my bibliography items like this ...

This creates the impression that you write the formatted bibliographic entries entirely by hand. If this impression is correct, all you need to do to achieve your stated formatting goal is to set the optional argument of each \bibitem to whatever you want it to say, e.g., RS80:

\begin{thebibliography}{9}

\bibitem[RS80]{reed-simon:1980} M.~Reed and B.~Simon, Methods of 
    Modern Mathematical Physics I, Functional Analysis, Academic 
    Press, New York, 1980.


\end{thebibliography}

With this modification in place, , the instruction \cite{reed-simon:1980} will output [RS80], as desired.

Mico
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