Yuri Linnik and Mark Naimark, are Soviet's from which occupation?
Mark Naimark Mark Aronovich Naimark (Russian: Марк Ароно́вич Наймарк ) (5 December 1909 – 30 December 1978) was a Soviet mathematician who made important contributions to functional analysis and mathematical physics.
Nikita Petrov Nikita Vasilyevich Petrov (Russian: Ники́та Васи́льевич Петро́в , born 31 January 1957, Kiev) is a Russian historian. He works at "Memorial," a Russian organization dedicated to studying Soviet political repression. Petrov specializes in Soviet security services.