[n] J. John, J. P. Aldridge, K. R. Chapman, R. H. Davis, C. P. Robinson, and W. J. Wallace, “Modification of an Ion Source for the Production of Microampere 4He- Beams”, in Proc. PAC'67, Washington D.C., USA, Mar. 1967, pp. 82-87.
%\cite{John:PAC67} \bibitem{John:PAC67} J. John, J. P. Aldridge, K. R. Chapman, R. H. Davis, C. P. Robinson, and W. J. Wallace, \textquotedblleft{Modification of an Ion Source for the Production of Microampere <sup>4</sup>He<sup>-</sup> Beams}\textquotedblright, in \emph{Proc. PAC’67}, Washington D.C., USA, Mar. 1967, pp. 82--87.
@inproceedings{john:pac67, author = {J. John and J. P. Aldridge and K. R. Chapman and R. H. Davis and C. P. Robinson and W. J. Wallace}, title = {{Modification of an Ion Source for the Production of Microampere <sup>4</sup>He<sup>-</sup> Beams}}, booktitle = {Proc. PAC'67}, pages = {82--87}, paper = {}, venue = {Washington D.C., USA}, series = {Particle Accelerator Conference}, number = {2}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {6}, year = {1967}, language = {english} }