[n] G. W. Bennett and C. M. Turner, “A Penning Discharge Ion Source for High Brightness”, in Proc. PAC'67, Washington D.C., USA, Mar. 1967, pp. 65-70.
%\cite{Bennett:PAC67} \bibitem{Bennett:PAC67} G. W. Bennett and C. M. Turner, \textquotedblleft{A Penning Discharge Ion Source for High Brightness}\textquotedblright, in \emph{Proc. PAC’67}, Washington D.C., USA, Mar. 1967, pp. 65--70.
@inproceedings{bennett:pac67, author = {G. W. Bennett and C. M. Turner}, title = {{A Penning Discharge Ion Source for High Brightness}}, booktitle = {Proc. PAC'67}, pages = {65--70}, paper = {}, venue = {Washington D.C., USA}, series = {Particle Accelerator Conference}, number = {2}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {6}, year = {1967}, language = {english} }