[n] D. Clark, “Recent Progress in Heavy Ion Sources”, in Proc. PAC'77, Chicago, IL, USA, Mar. 1977, pp. 1064-1070.
%\cite{Clark:PAC77} \bibitem{Clark:PAC77} D. Clark, \textquotedblleft{Recent Progress in Heavy Ion Sources}\textquotedblright, in \emph{Proc. PAC’77}, Chicago, IL, USA, Mar. 1977, pp. 1064--1070.
@inproceedings{clark:pac77, author = {D. Clark}, title = {{Recent Progress in Heavy Ion Sources}}, booktitle = {Proc. PAC'77}, pages = {1064--1070}, paper = {}, venue = {Chicago, IL, USA, Mar. 1977}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }