PACS:01.60.+q DOI:10.1070/PU1983v026n07ABEH004459 URL: https://ufn.ru/en/articles/1983/7/g/ Citation: Zenchenko V M, Kardashev N S, Kurt V G, Nesterov V E, Rozental’ I L, Frank I M, Shapiro I S, Shklovskii I S "Isai Veniaminovich Estulin (Obituary)" Sov. Phys. Usp.26 638–638 (1983)