PACS:01.60.+q DOI:10.1070/PU1981v024n02ABEH004763 URL: https://ufn.ru/en/articles/1981/2/f/ Citation: Aleksandrov E B, Bonch-Bruevich A M, Galanin M D, Kaliteevskii N I, Kaplyanskii A A, Mandel’shtam S L, Miroshnikov M M, Neporent B S, Ryskin A I "Petr Petrovich Feofilov (Obituary)" Sov. Phys. Usp.24 159–160 (1981)