[n] J. P. Blewett, “Proton Synchrotrons for Energies above 20- GeV”, in Proc. PAC'67, Washington D.C., USA, Mar. 1967, pp. 1204-1208.
%\cite{Blewett:PAC67} \bibitem{Blewett:PAC67} J. P. Blewett, \textquotedblleft{Proton Synchrotrons for Energies above 20- GeV}\textquotedblright, in \emph{Proc. PAC’67}, Washington D.C., USA, Mar. 1967, pp. 1204--1208.
@inproceedings{blewett:pac67, author = {J. P. Blewett}, title = {{Proton Synchrotrons for Energies above 20- GeV}}, booktitle = {Proc. PAC'67}, pages = {1204--1208}, paper = {}, venue = {Washington D.C., USA}, series = {Particle Accelerator Conference}, number = {2}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {6}, year = {1967}, language = {english} }