[n] J. Schivell and C. Schmidt, “Use of Subsurface Voids for Offsetting Saturation Effects in Quadrupole Magnets”, in Proc. PAC'71, Chicago, IL, USA, Mar. 1971, pp. 864-865.
%\cite{Schivell:PAC71} \bibitem{Schivell:PAC71} J. Schivell and C. Schmidt, \textquotedblleft{Use of Subsurface Voids for Offsetting Saturation Effects in Quadrupole Magnets}\textquotedblright, in \emph{Proc. PAC’71}, Chicago, IL, USA, Mar. 1971, pp. 864--865.
@inproceedings{schivell:pac71, author = {J. Schivell and C. Schmidt}, title = {{Use of Subsurface Voids for Offsetting Saturation Effects in Quadrupole Magnets}}, booktitle = {Proc. PAC'71}, pages = {864--865}, paper = {}, venue = {Chicago, IL, USA}, series = {Particle Accelerator Conference}, number = {4}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {6}, year = {1971}, language = {english} }