[n] J. Friedrich et al., “Performance of the GSI HLI-RFQ”, in Proc. EPAC'92, Berlin, Germany, Mar. 1992, pp. 551-554.
%\cite{Friedrich:EPAC92} \bibitem{Friedrich:EPAC92} J. Friedrich \emph{et al.}, \textquotedblleft{Performance of the GSI HLI-RFQ}\textquotedblright, in \emph{Proc. EPAC’92}, Berlin, Germany, Mar. 1992, pp. 551--554.
@inproceedings{friedrich:epac92, author = {J. Friedrich and others}, title = {{Performance of the GSI HLI-RFQ}}, booktitle = {Proc. EPAC'92}, pages = {551--554}, paper = {}, venue = {Berlin, Germany, Mar. 1992}, series = {European Particle Accelerator Conference}, number = {3}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }