PACS:41.20.Jb, 01.60.+q, 62.65.+k (all) DOI:10.1070/PU1986v029n12ABEH003609 URL: https://ufn.ru/en/articles/1986/12/d/ Citation: Khramov Yu A "Petr Nikolaevich Lebedev and his school (On the 120th anniversary of the year of his birth)" Sov. Phys. Usp.29 1127–1134 (1986)