I must have the editor(s) in parentheses for source-types such as collections, proceedings and others. The relevant part of the bibliography item currently looks like
Ed. by F. Seibt
but must be
Seibt, F. (editor)
For multiple editors, the status quo is
Ed. by G. E. R. Lloyd/G. E. L. Owen
but it must be
Lloyd, G. E. R./Owen, G. E. L. (editors)
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\usepackage{lmodern}
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language=auto,
style=authoryear,
backend=bibtex,
isbn=false,
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\begin{filecontents*}{lit.bib}
@InCollection{brandt,
options = {useprefix=false},
hyphenation = {german},
indexsorttitle = {Nordischen Lander von der Mitte des 11. Jahrhunderts bis 1448},
author = {von Brandt, Ahasver and Erich Hoffmann},
editor = {Ferdinand Seibt},
indextitle = {Nordischen L{\"a}nder von der Mitte des 11.~Jahrhunderts bis 1448, Die},
title = {Die nordischen L{\"a}nder von der Mitte des 11.~Jahrhunderts bis 1448},
shorttitle = {Die nordischen L{\"a}nder},
booktitle = {Europa im Hoch- und Sp{\"a}tmittelalter},
series = {Handbuch der europ{\"a}ischen Geschichte},
number = {2},
publisher = {Klett-Cotta},
location = {Stuttgart},
date = {1987},
pages = {884--917},
}
@InProceedings{moraux,
keywords = {secondary},
hyphenation = {french},
indexsorttitle = {De Anima dans la tradition grecque},
author = {Moraux, Paul},
editor = {Lloyd, G. E. R. and Owen, G. E. L.},
indextitle = {\emph{De Anima} dans la tradition gr{\`e}cque, Le},
title = {Le \emph{De Anima} dans la tradition gr{\`e}cque},
subtitle = {Quelques aspects de l'interpretation du trait{\'e}, de Theophraste {\`a}
Themistius},
shorttitle = {\emph{De Anima} dans la tradition gr{\`e}cque},
booktitle = {Aristotle on Mind and the Senses},
booktitleaddon = {Proceedings of the Seventh Symposium Aristotelicum},
eventdate = {1975},
publisher = cup,
location = {Cambridge},
date = {1979},
pages = {281--324},
annotation = {This is a typical \texttt{inproceedings} entry. Note the \texttt{booksubtitle},
\texttt{shorttitle}, \texttt{indextitle}, and \texttt{indexsorttitle} fields.
Also note the \texttt{eventdate} field.}
}
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\DeclareNameAlias{sortname}{last-first}
\renewcommand{\multinamedelim}{\addslash}
\renewcommand{\finalnamedelim}{\addslash}
\begin{document}
\chapter{First Chapter}
\begin{itemize}
\item This is for the \verb+@incollection+ type by \citeauthor{brandt}.\footcite[See][p. 12]{brandt} The bibliography item currently looks like
\begin{verbatim}
Ed. by F. Seibt
\end{verbatim}
but I must have
\begin{verbatim}
Seibt, F. (editor)
\end{verbatim}
\item Then for \verb+@inproceedings+, in the case of multiple editors: these are just some words to have a sentence.\footcite[Cp.][p. xi]{moraux}. This currently looks like
\begin{verbatim}
Ed. by G. E. R. Lloyd/G. E. L. Owen
\end{verbatim}
but I must have
\begin{verbatim}
Lloyd, G. E. R./Owen, G. E. L. (editors)
\end{verbatim}
\end{itemize}
\printbibliography
\end{document}

\DefineBibliographyStrings{english}{byeditor = {editor}}but I can't figure out they correct key calue for multiple editors. – henry May 10 '13 at 12:44byeditors;-) See the filegerman.lbx. – Marco Daniel May 10 '13 at 12:44\DefineBibliographyStrings{english}{byeditor = {editor},byeditors={editors},}– henry May 10 '13 at 13:12