[n] W. Wan and M. Berz, “Four-Cell Third Order Achromats and their Application to Multi-Pass Time-of-Flight Spectrometers”, in Proc. PAC'93, Washington D.C., USA, Mar. 1993, pp. 155-158.
%\cite{Wan:PAC93} \bibitem{Wan:PAC93} W. Wan and M. Berz, \textquotedblleft{Four-Cell Third Order Achromats and their Application to Multi-Pass Time-of-Flight Spectrometers}\textquotedblright, in \emph{Proc. PAC’93}, Washington D.C., USA, Mar. 1993, pp. 155--158.
@inproceedings{wan:pac93, author = {W. Wan and M. Berz}, title = {{Four-Cell Third Order Achromats and their Application to Multi-Pass Time-of-Flight Spectrometers}}, booktitle = {Proc. PAC'93}, pages = {155--158}, paper = {}, venue = {Washington D.C., USA, Mar. 1993}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }