found: NUCMC data from Columbia Univ. Libraries, Bakhmeteff Archive (New York, N.Y.) for Unkovskīĭ, V. Papers, ca. 1920-1958(Emile Baës)
found: LC manual cat.(hdg.: Baes, Émile, 1879- ; usage not given)
found: Bénézit, E. Dict. crit. et doc. des peintres, sculpteurs, dessinateurs et graveurs, 1976:p. 372 (Baes (Emile); painter, illustrator, professor, and literary author; b. Brussels Nov. 12, 1879; gives reproduction of his signature, which lacks umlaut)
notfound: GDEL;Dict. de biog. franç.;La Grande enc.