[n] A. A. Shurygin, “Booster Power Supply System”, presented at the RuPAC2021, Alushta, Crimea, Sep.-Oct. 2021, paper WEPSC26, unpublished.
%\cite{Shurygin:RuPAC2021-WEPSC26} \bibitem{Shurygin:RuPAC2021-WEPSC26} A. A. Shurygin, \textquotedblleft{Booster Power Supply System}\textquotedblright, presented at the RuPAC2021, Alushta, Crimea, Sep.-Oct. 2021, paper WEPSC26, unpublished.
@unpublished{shurygin:rupac2021-wepsc26, author = {A. A. Shurygin}, title = {{Booster Power Supply System}}, booktitle = {Proc. RuPAC2021}, pages = {}, paper = {WEPSC26}, venue = {Alushta, Crimea}, intype = {presented at the}, series = {Russian Particle Accelerator Conference}, number = {27}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {10}, year = {2021}, issn = {2673-5539}, isbn = {978-3-95-450240-0}, note = {presented at RuPAC2021, Alushta, Crimea, Sep.-Oct. 2021, paper WEPSC26, unpublished}, language = {english} }