[n] N. Vallis et al., “The PSI Positron Production project”, presented at the IPAC'24, Nashville, TN, USA, May 2024, paper TUPC50, unpublished.
%\cite{Vallis:IPAC24-TUPC50} \bibitem{Vallis:IPAC24-TUPC50} N. Vallis \emph{et al.}, \textquotedblleft{The PSI Positron Production project}\textquotedblright, presented at the IPAC’24, Nashville, TN, USA, May 2024, paper TUPC50, unpublished.
@unpublished{vallis:ipac24-tupc50, author = {N. Vallis and others}, title = {{The PSI Positron Production project}}, pages = {}, paper = {TUPC50}, venue = {Nashville, TN, USA, May 2024}, intype = {presented at the}, series = {International Particle Accelerator Conference}, number = {15}, publisher = {JACoW Publishing, Geneva, Switzerland}, note = {presented at IPAC'24, Nashville, TN, USA, May 2024, paper TUPC50, unpublished}, language = {english} }