[n] R. D. Ruth, “Emittance Control in Linear Colliders”, in Proc. PAC'91, San Francisco, CA, USA, May 1991, pp. 2037-2042.
%\cite{Ruth:PAC91} \bibitem{Ruth:PAC91} R. D. Ruth, \textquotedblleft{Emittance Control in Linear Colliders}\textquotedblright, in \emph{Proc. PAC’91}, San Francisco, CA, USA, May 1991, pp. 2037--2042.
@inproceedings{ruth:pac91, author = {R. D. Ruth}, title = {{Emittance Control in Linear Colliders}}, booktitle = {Proc. PAC'91}, pages = {2037--2042}, paper = {}, venue = {San Francisco, CA, USA, May 1991}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }