PACS:01.60.+q, 41.60.Bq (all) DOI:10.1070/PU1969v011n05ABEH003753 URL: https://ufn.ru/en/articles/1969/5/r/ Citation: Barit I Ya, Lazareva L E, Feinberg E L, Shapiro F L "Il'ya Mikhailovich Frank (in honor of his sixtieth birthday)" Sov. Phys. Usp.11 782–784 (1969)