[n] T. Long et al., “Harmonic generation from hard X-ray self-seeded free-electron laser”, presented at the IPAC'24, Nashville, TN, USA, May 2024, paper MOPG28, unpublished.
%\cite{Long:IPAC24-MOPG28} \bibitem{Long:IPAC24-MOPG28} T. Long \emph{et al.}, \textquotedblleft{Harmonic generation from hard X-ray self-seeded free-electron laser}\textquotedblright, presented at the IPAC’24, Nashville, TN, USA, May 2024, paper MOPG28, unpublished.
@unpublished{long:ipac24-mopg28, author = {T. Long and others}, title = {{Harmonic generation from hard X-ray self-seeded free-electron laser}}, pages = {}, paper = {MOPG28}, 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= {JACoW Publishing, Geneva, Switzerland}, note = {presented at IPAC'24, Nashville, TN, USA, May 2024, paper MOPG28, unpublished}, language = {english} }