[n] H. Thimmel and P. Wucherer, “Extraction from the Juelich 90 - Me V - d AEG-Isochronous Cyclotron”, in Proc. PAC'69, Washington D.C., USA, Mar. 1969, pp. 474-479.
%\cite{Thimmel:PAC69} \bibitem{Thimmel:PAC69} H. Thimmel and P. Wucherer, \textquotedblleft{Extraction from the Juelich 90 - Me V - d<sup></sup> AEG-Isochronous Cyclotron}\textquotedblright, in \emph{Proc. PAC’69}, Washington D.C., USA, Mar. 1969, pp. 474--479.
@inproceedings{thimmel:pac69, author = {H. Thimmel and P. Wucherer}, title = {{Extraction from the Juelich 90 - Me V - d<sup></sup> AEG-Isochronous Cyclotron}}, booktitle = {Proc. PAC'69}, pages = {474--479}, paper = {}, venue = {Washington D.C., USA}, series = {Particle Accelerator Conference}, number = {3}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {6}, year = {1969}, language = {english} }