found: Oginskai︠a︡, L. Gustav Klut︠s︡is, 1981:t.p. (Gustav Klut︠s︡is)p. 164, etc. (Gustav Gustavovich Klut︠s︡is, G. G. Klut︠s︡is, b. 1/4(16)/1895, d. 1944, Klucis Gustavs)
found: Email from MoU, July 20, 2004(Gustav Klutsis and Valentina Kulagina, 2003: p. 247: Klutsis was arrested in 1938 and executed 3 weeks later)
found: Klutsis and Kalagina Web site, July 21, 2004(Gustav Klutsis; b. Latvia, 1895; arrested in 1938; killed not long after his arrest at the Butovo prison near Moscow; Kulagina believed the official version of Klutsis' death that claimed he died of a heart attack in prison in 1944)
found: The chairman smiles--Designers Web site, July 1, 2004(Gustav Gustavovich Klutsis (1895-1938/1944); arrested in 1938 on the accusation of membership of a right-wing Latvian organization, and either executed soon afterwards or deported to a concentration camp in Central Asia and died there in 1944)
found: Union list of artists names online, July 21, 2004(Klucis, Gustav; Latvian painter, sculptor, and graphic artist, 1895-1944)
found: Grove art online, July 21, 2004(Klucis, Gustav [Klutsis, Gustav (Gustavovich)]; b. Rŭjiena, Latvia, 4 Jan. 1895; d, Siberia, 1944)
found: Biog. & geneal. master index, July 21, 2004(Klutsis, Gustav Gustavovich (1895-1944))