found: The secret of the two feathers, c1954:t.p. (Ivo Duka)
found: LC database, May 10, 2016(heading: Duchacek, Ivo D., 1913- ; usage: Ivo D. Duchacek, Ivo Duka [pseud.])
found: New York times WWW site, viewed May 10, 2016(in obituary published Mar. 3, 1988: Ivo D. Duchacek; d. Tuesday [Mar. 1, 1988], Kent, Conn., aged 75; member of Czechoslovakia's Parliament who fled in 1948 when the Communists took power and later became a professor of political science at City College; for 38 years until his death, Mr. Duchacek delivered a weekly commentary over the Voice of America, beamed to Czechoslovakia under his nom de plume, Martin Cermak; author of eight books dealing with international relations and other political subjects, and two children's books)
found: SSDI, viewed May 10, 2016(Ivo D. Duchacek; b. Feb. 27, 1913; d. Mar. 1988; last residence: Kent, Conn.)
found: Czech Wikipedia, viewed May 10, 2016(Ivo Ducháček; b. Feb. 27, 1913, Prostějov; d. Mar. 2, 1988, Kent)