[n] K. H. Purser, “Some Advances in Negative Ion Technology”, in Proc. PAC'73, San Francisco, CA, USA, Mar. 1973, pp. 136-142.
%\cite{Purser:PAC73} \bibitem{Purser:PAC73} K. H. Purser, \textquotedblleft{Some Advances in Negative Ion Technology}\textquotedblright, in \emph{Proc. PAC’73}, San Francisco, CA, USA, Mar. 1973, pp. 136--142.
@inproceedings{purser:pac73, author = {K. H. Purser}, title = {{Some Advances in Negative Ion Technology}}, booktitle = {Proc. PAC'73}, pages = {136--142}, paper = {}, venue = {San Francisco, CA, USA}, series = {Particle Accelerator Conference}, number = {5}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {6}, year = {1973}, language = {english} }