[n] W. Ebeling et al., “The Radiofrequency-Systems of PIA”, in Proc. PAC'81, Washington D.C., USA, Mar. 1981, pp. 2898-2901.
%\cite{Ebeling:PAC81} \bibitem{Ebeling:PAC81} W. Ebeling \emph{et al.}, \textquotedblleft{The Radiofrequency-Systems of PIA}\textquotedblright, in \emph{Proc. PAC’81}, Washington D.C., USA, Mar. 1981, pp. 2898--2901.
@inproceedings{ebeling:pac81, author = {W. Ebeling and others}, title = {{The Radiofrequency-Systems of PIA}}, booktitle = {Proc. PAC'81}, pages = {2898--2901}, paper = {}, venue = {Washington D.C., USA, Mar. 1981}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }