found: His Napoleon and the shark, 1983: t.p. (Yuri Krotkov)
found: LC data base, 4/3/85 (hdg.: Krotkov, I͡Uriĭ, 1917- ; usage: Yuri Krotkov; [no Russian publs. in data base])
found: N.Y. Times index, 1957 (Krotkov, Yuri)
found: Contemp. auth., v. 102 (Krotkov, Yuri; b. in Russia, 11/11/17; writer, news correspondent, screenwriter & dramatist in Moscow until 1963, when granted political asylum in Gt. Brit.; present home, Hollywood, CA)
found: Calif. death index, via Ancestry.com, June 20, 2012: (d. Dec. 26, 1981)
notfound: Encyc. Brit. 15th;Encyc. Amer.;Collier's encyc.