[n] G. D. Alton, “Recent Advancements in Sputter-Type Heavy Negative Ion Sources”, in Proc. PAC'89, Chicago, IL, USA, Mar. 1989, pp. 1112-1117.
%\cite{Alton:PAC89} \bibitem{Alton:PAC89} G. D. Alton, \textquotedblleft{Recent Advancements in Sputter-Type Heavy Negative Ion Sources}\textquotedblright, in \emph{Proc. PAC’89}, Chicago, IL, USA, Mar. 1989, pp. 1112--1117.
@inproceedings{alton:pac89, author = {G. D. Alton}, title = {{Recent Advancements in Sputter-Type Heavy Negative Ion Sources}}, booktitle = {Proc. PAC'89}, pages = {1112--1117}, paper = {}, venue = {Chicago, IL, USA, Mar. 1989}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }