[n] G. V. Stupakov and S. K. Kauffmann, “Echo Effect in Accelerators”, in Proc. PAC'93, Washington D.C., USA, Mar. 1993, pp. 197-200.
%\cite{Stupakov:PAC93} \bibitem{Stupakov:PAC93} G. V. Stupakov and S. K. Kauffmann, \textquotedblleft{Echo Effect in Accelerators}\textquotedblright, in \emph{Proc. PAC’93}, Washington D.C., USA, Mar. 1993, pp. 197--200.
@inproceedings{stupakov:pac93, author = {G. V. Stupakov and S. K. Kauffmann}, title = {{Echo Effect in Accelerators}}, booktitle = {Proc. PAC'93}, pages = {197--200}, paper = {}, venue = {Washington D.C., USA, Mar. 1993}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }