[n] E. Boers, “Digital Computer Simulation of Three-Dimensional Ion Beam Extraction and Transport Systems”, in Proc. PAC'91, San Francisco, CA, USA, May 1991, pp. 275-278.
%\cite{Boers:PAC91} \bibitem{Boers:PAC91} E. Boers, \textquotedblleft{Digital Computer Simulation of Three-Dimensional Ion Beam Extraction and Transport Systems}\textquotedblright, in \emph{Proc. PAC’91}, San Francisco, CA, USA, May 1991, pp. 275--278.
@inproceedings{boers:pac91, author = {E. Boers}, title = {{Digital Computer Simulation of Three-Dimensional Ion Beam Extraction and Transport Systems}}, booktitle = {Proc. PAC'91}, pages = {275--278}, paper = {}, venue = {San Francisco, CA, USA, May 1991}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }