The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{piao:ipac2021-thpab077}
\bibitem{piao:ipac2021-thpab077}
Y. Piao, R.J. Dejus, M.F. Qian, I. Vasserman, and J.Z. Xu,
\textquotedblleft{Magnetic Shims Studies for APS-U Hybrid Permanent Magnet Undulators}\textquotedblright,
% --- abbreviated form (published paper) - JACoW template Feb 2018 ---
in \emph{Proc. IPAC'21}, Campinas, SP, Brazil, May 2021, pp. 3941--3944.
\url{doi:10.18429/JACoW-IPAC2021-THPAB077}
% --- additional material -ISSN/ISBN--
% ISBN: 978-3-95450-214-1, ISSN: 2673-5490