[n] E. R. Gray, “Beam-Emittance Measurements on the NAL 200-MeV Linac”, in Proc. PAC'71, Chicago, IL, USA, Mar. 1971, pp. 941-943.
%\cite{Gray:PAC71} \bibitem{Gray:PAC71} E. R. Gray, \textquotedblleft{Beam-Emittance Measurements on the NAL 200-MeV Linac}\textquotedblright, in \emph{Proc. PAC’71}, Chicago, IL, USA, Mar. 1971, pp. 941--943.
@inproceedings{gray:pac71, author = {E. R. Gray}, title = {{Beam-Emittance Measurements on the NAL 200-MeV Linac}}, booktitle = {Proc. PAC'71}, pages = {941--943}, paper = {}, venue = {Chicago, IL, USA}, series = {Particle Accelerator Conference}, number = {4}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {6}, year = {1971}, language = {english} }