[n] R. Cohen, E. Martin, S. Ohnuma, and K. Ziegler, “Extraction Studies for the Modified Nevis Synchrocyclotron”, in Proc. PAC'69, Washington D.C., USA, Mar. 1969, pp. 434-438.
%\cite{Cohen:PAC69} \bibitem{Cohen:PAC69} R. Cohen, E. Martin, S. Ohnuma, and K. Ziegler, \textquotedblleft{Extraction Studies for the Modified Nevis Synchrocyclotron}\textquotedblright, in \emph{Proc. PAC’69}, Washington D.C., USA, Mar. 1969, pp. 434--438.
@inproceedings{cohen:pac69, author = {R. Cohen and E. Martin and S. Ohnuma and K. Ziegler}, title = {{Extraction Studies for the Modified Nevis Synchrocyclotron}}, booktitle = {Proc. PAC'69}, pages = {434--438}, paper = {}, venue = {Washington D.C., USA}, series = {Particle Accelerator Conference}, number = {3}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {6}, year = {1969}, language = {english} }