[n] R. D. Ruth, “Progress Towards the Design of a Next Linear Collider”, in Proc. EPAC'90, Nice, France, Jun. 1990, pp. 28-31.
%\cite{Ruth:EPAC90} \bibitem{Ruth:EPAC90} R. D. Ruth, \textquotedblleft{Progress Towards the Design of a Next Linear Collider}\textquotedblright, in \emph{Proc. EPAC’90}, Nice, France, Jun. 1990, pp. 28--31.
@inproceedings{ruth:epac90, author = {R. D. Ruth}, title = {{Progress Towards the Design of a Next Linear Collider}}, booktitle = {Proc. EPAC'90}, pages = {28--31}, paper = {}, venue = {Nice, France, Jun. 1990}, series = {European Particle Accelerator Conference}, number = {2}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }