[n] J. L. Lamaack et al., “New Beam Position Monitor System for PETRA IV”, presented at the IBIC'23, Saskatoon, Canada, Sep. 2023, paper MOP021, unpublished.
%\cite{Lamaack:IBIC23-MOP021} \bibitem{Lamaack:IBIC23-MOP021} J. L. Lamaack \emph{et al.}, \textquotedblleft{New Beam Position Monitor System for PETRA IV}\textquotedblright, presented at the IBIC’23, Saskatoon, Canada, Sep. 2023, paper MOP021, unpublished.
@unpublished{lamaack:ibic23-mop021, author = {J. L. Lamaack and others}, title = {{New Beam Position Monitor System for PETRA IV}}, booktitle = {Proc. IBIC'23}, pages = {}, paper = {MOP021}, venue = {Saskatoon, Canada}, intype = {presented at the}, series = {International Beam Instrumentation Conference}, number = {13}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {12}, year = {2023}, issn = {2673-5350}, isbn = {978-3-95-450236-3}, note = {presented at IBIC'23, Saskatoon, Canada, Sep. 2023, paper MOP021, unpublished}, language = {english} }