[n] R. W. M??ller, “Work on RF Quadrupole Focusing Structiures at GSI”, in Proc. LINAC'79, Montauk, NY, USA, Sep. 1979, paper S3-4, pp. 148-151.
%\cite{M??ller:LINAC79-S3-4} \bibitem{M??ller:LINAC79-S3-4} R. W. M??ller, \textquotedblleft{Work on RF Quadrupole Focusing Structiures at GSI}\textquotedblright, in \emph{Proc. LINAC’79}, Montauk, NY, USA, Sep. 1979, paper S3--4, pp. 148--151.
@inproceedings{m??ller:linac79-s3-4, author = {R. W. M??ller}, title = {{Work on RF Quadrupole Focusing Structiures at GSI}}, booktitle = {Proc. LINAC'79}, pages = {148--151}, paper = {S3-4}, venue = {Montauk, NY, USA, Sep. 1979}, series = {Linear Accelerator Conference}, publisher = {JACoW Publishing, Geneva, Switzerland}, url = {https://jacow.org/l79/papers/S3-4.pdf}, language = {english} }