PACS:01.60.+q, 96.50.sb, 13.85.−t, 41.60.Bq (all) DOI:10.1070/PU1991v034n07ABEH002457 URL: https://ufn.ru/en/articles/1991/7/j/ Citation: Domogatskii G V, Zatsepin G T, Markov M A, Matveev V A, Khristiansen G B "Aleksandr Evgen'evich Chudakov (on his seventieth birthday)" Sov. Phys. Usp.34 (7) 637–638 (1991)