[n] R. Carr, “Planar Helical Undulator Sources of Circularly Polarized X-Rays”, in Proc. PAC'93, Washington D.C., USA, Mar. 1993, pp. 1596-1599.
%\cite{Carr:PAC93} \bibitem{Carr:PAC93} R. Carr, \textquotedblleft{Planar Helical Undulator Sources of Circularly Polarized X-Rays}\textquotedblright, in \emph{Proc. PAC’93}, Washington D.C., USA, Mar. 1993, pp. 1596--1599.
@inproceedings{carr:pac93, author = {R. Carr}, title = {{Planar Helical Undulator Sources of Circularly Polarized X-Rays}}, booktitle = {Proc. PAC'93}, pages = {1596--1599}, paper = {}, venue = {Washington D.C., USA, Mar. 1993}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }