[n] R. A. Beth, “Complex Methods for Three-Dimensional Magnetic Fields”, in Proc. PAC'71, Chicago, IL, USA, Mar. 1971, pp. 901-904.
%\cite{Beth:PAC71} \bibitem{Beth:PAC71} R. A. Beth, \textquotedblleft{Complex Methods for Three-Dimensional Magnetic Fields}\textquotedblright, in \emph{Proc. PAC’71}, Chicago, IL, USA, Mar. 1971, pp. 901--904.
@inproceedings{beth:pac71, author = {R. A. Beth}, title = {{Complex Methods for Three-Dimensional Magnetic Fields}}, booktitle = {Proc. PAC'71}, pages = {901--904}, paper = {}, venue = {Chicago, IL, USA}, series = {Particle Accelerator Conference}, number = {4}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {6}, year = {1971}, language = {english} }