Avec `sortname={Labrosse, Claude}` :
\begin{filecontents*}[overwrite]{Bibliothese.bib}
@article{labrosse_orage_voix2008,
title = {La voix et l'événement : possibilités et limites d'une poétique de la presse},
author = {Labrosse, Claude},
pages = {23-36},
journaltitle = {Orages},
volume = {7},
year = {2008},
sortname={Labrosse, Claude}}
@book{labrosse_naissancejournalrf_1989,
title = {Naissance du journal révolutionnaire : 1789},
author = {Labrosse, Claude and Rétat, Pierre},
date = {1989},
publisher = {Presses Universitaires de Lyon},
location = {Lyon},
sortname={Labrosse, Claude}}
@incollection{labrosseretat_formejournal17989_1990,
title = {La forme du journal en 1789},
author = {Labrosse, Claude and Rétat, Pierre},
pages = {51-82},
crossref = {retat_textologie_1990},
sortname={Labrosse, Claude}
}
@collection{retat_textologie_1990,
title = {Textologie du journal},
series = {Cahiers de textologie},
editor = {Rétat, Pierre},
location = {Paris},
publisher = {Minard},
date = {1990}
}
@article{labrosse_recit1789_1988,
title = {Le récit d'événement dans la presse de 1789},
author = {Labrosse, Claude},
year = {1988},
journaltitle = {Dix-Huitième Siècle},
volume = {20},
pages = {99-110},
sortname={Labrosse, Claude}
}
\end{filecontents*}
\documentclass[12pt,a4paper,notitlepage,twoside]{book}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[
backend=biber ,
bibstyle=authortitle-ibid ,
citestyle=verbose-trad2 ,
sorting = nyt ,
maxbibnames = 3 ,
maxsortnames = 1 ,
uniquework=true,
citepages=omit ,
idemtracker=false ,
ibidpage=true ,
ibidtracker=true ,
useprefix=false ,
dashed=false ,
dateuncertain=true ,
mincrossrefs = 1 ,
safeinputenc ,
]{biblatex}
\addbibresource{Bibliothese.bib}
\begin{document}
\cite{labrosse_naissancejournalrf_1989}
\cite{labrosseretat_formejournal17989_1990}
\cite{labrosse_orage_voix2008}
\cite{labrosse_recit1789_1988}
\printbibliography
\end{document}
![alt text][1]
[1]: https://texnique.fr/osqa/upfiles/Screenshot_2021-10-13_at_23.05.31.pnghttps://texnique.fr/osqa/upfiles/Screenshot_2021-10-13_at_23.05.31.png
Ou une version automatique :
\documentclass[12pt,a4paper,notitlepage,twoside]{book}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[
backend=biber ,
bibstyle=authortitle-ibid ,
citestyle=verbose-trad2 ,
sorting = nyt ,
maxbibnames = 3 ,
maxsortnames = 1 ,
uniquework=true,
citepages=omit ,
idemtracker=false ,
ibidpage=true ,
ibidtracker=true ,
useprefix=false ,
dashed=false ,
dateuncertain=true ,
mincrossrefs = 1 ,
safeinputenc ,
]{biblatex}
\addbibresource{Bibliothese.bib}
\DeclareSourcemap{
\maps[datatype=bibtex]{
\map[overwrite=false]{
\step[fieldsource=author, match=\regexp{(.+?)\s+and\s+(.+)}, final]
\step[fieldset=sortname, fieldvalue={$1}]
}
}
}
\begin{document}
\cite{labrosse_naissancejournalrf_1989}
\cite{labrosseretat_formejournal17989_1990}
\cite{labrosse_orage_voix2008}
\cite{labrosse_recit1789_1988}
\printbibliography
\end{document}
