[n] J. A. Benjamin, “Selection of a Vac-Ion Pump for a Terminal Ion Source”, in Proc. PAC'69, Washington D.C., USA, Mar. 1969, pp. 107-109.
%\cite{Benjamin:PAC69} \bibitem{Benjamin:PAC69} J. A. Benjamin, \textquotedblleft{Selection of a Vac-Ion Pump for a Terminal Ion Source}\textquotedblright, in \emph{Proc. PAC’69}, Washington D.C., USA, Mar. 1969, pp. 107--109.
@inproceedings{benjamin:pac69, author = {J. A. Benjamin}, title = {{Selection of a Vac-Ion Pump for a Terminal Ion Source}}, booktitle = {Proc. PAC'69}, pages = {107--109}, paper = {}, venue = {Washington D.C., USA}, series = {Particle Accelerator Conference}, number = {3}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {6}, year = {1969}, language = {english} }