[n] U. Vogel, “The Derivation of Synchrotron Orbit Perturbations from Orbit Measurements”, in Proc. PAC'71, Chicago, IL, USA, Mar. 1971, pp. 1090-1092.
%\cite{Vogel:PAC71} \bibitem{Vogel:PAC71} U. Vogel, \textquotedblleft{The Derivation of Synchrotron Orbit Perturbations from Orbit Measurements}\textquotedblright, in \emph{Proc. PAC’71}, Chicago, IL, USA, Mar. 1971, pp. 1090--1092.
@inproceedings{vogel:pac71, author = {U. Vogel}, title = {{The Derivation of Synchrotron Orbit Perturbations from Orbit Measurements}}, booktitle = {Proc. PAC'71}, pages = {1090--1092}, paper = {}, venue = {Chicago, IL, USA}, series = {Particle Accelerator Conference}, number = {4}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {6}, year = {1971}, language = {english} }