PACS:01.60.+q DOI:10.3367/UFNe.2021.09.039056 URL: https://ufn.ru/en/articles/2021/10/g/ 000740826300006 Citation: Balega Yu Yu, Zherebtsov G A, Kul’chin Yu N, Kveder V V, Latyshev A V, Litvak A G, Matveev V A, Mesyats G A, Nigmatulin R I, Ratakhin N A, Sergeev A M, Shalagin A M "Sergei Nikolaevich Bagaev (on his 80th birthday)" Phys. Usp.64 1063–1064 (2021)