Reproduction of material from the journal in any form requires written permission of the publisher.
Teachers, students and researchers can individually use the materials on Physics-Uspekhi website for noncommercial use in a teaching or research activities.
Оригинал: Прохоров А М «Физика СССР: этапы большого пути» УФН 140 699–708 (1983); DOI: 10.3367/UFNr.0140.198308f.0699