[n] J. Gao, “Analytical Formulae for the Coupling Coefficient beta Between a Waveguide and a Travelling Wave Structure”, in Proc. PAC'93, Washington D.C., USA, Mar. 1993, pp. 868-871.
%\cite{Gao:PAC93} \bibitem{Gao:PAC93} J. Gao, \textquotedblleft{Analytical Formulae for the Coupling Coefficient beta Between a Waveguide and a Travelling Wave Structure}\textquotedblright, in \emph{Proc. PAC’93}, Washington D.C., USA, Mar. 1993, pp. 868--871.
@inproceedings{gao:pac93, author = {J. Gao}, title = {{Analytical Formulae for the Coupling Coefficient beta Between a Waveguide and a Travelling Wave Structure}}, booktitle = {Proc. PAC'93}, pages = {868--871}, paper = {}, venue = {Washington D.C., USA, Mar. 1993}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }