[n] W. A. van Kampen and H. W. Schreuder, “Changing the Harmonic Number in a Synchrotron during Acceleration”, in Proc. PAC'71, Chicago, IL, USA, Mar. 1971, pp. 1018-1020.
%\cite{van Kampen:PAC71} \bibitem{van Kampen:PAC71} W. A. van Kampen and H. W. Schreuder, \textquotedblleft{Changing the Harmonic Number in a Synchrotron during Acceleration}\textquotedblright, in \emph{Proc. PAC’71}, Chicago, IL, USA, Mar. 1971, pp. 1018--1020.
@inproceedings{van kampen:pac71, author = {W. A. van Kampen and H. W. Schreuder}, title = {{Changing the Harmonic Number in a Synchrotron during Acceleration}}, booktitle = {Proc. PAC'71}, pages = {1018--1020}, paper = {}, venue = {Chicago, IL, USA}, series = {Particle Accelerator Conference}, number = {4}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {6}, year = {1971}, language = {english} }