[n] J. Fessenden, “Emittance Variations in Current-Amplifying Ion Induction Linacs”, in Proc. PAC'91, San Francisco, CA, USA, May 1991, pp. 586-591.
%\cite{Fessenden:PAC91} \bibitem{Fessenden:PAC91} J. Fessenden, \textquotedblleft{Emittance Variations in Current-Amplifying Ion Induction Linacs}\textquotedblright, in \emph{Proc. PAC’91}, San Francisco, CA, USA, May 1991, pp. 586--591.
@inproceedings{fessenden:pac91, author = {J. Fessenden}, title = {{Emittance Variations in Current-Amplifying Ion Induction Linacs}}, booktitle = {Proc. PAC'91}, pages = {586--591}, paper = {}, venue = {San Francisco, CA, USA, May 1991}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }