found: nuc89-18546: Conus, O. Fundamentals of piano technique, c1984(hdg. on OrU rept.: Conus, Leon; usage: Leon Conus)
found: The dawn of recording [SR] p2008:container (Leo Conus) insert (Conus (Konyus), Leo (Lev Eduardovich); b. 1871, Moscow; brother of Jules Conus; moved to Paris 1921, and then immigrated to US in 1937, where he settled in Cincinnati; d. 1944)
found: Grove music online, Feb. 11, 2010(under Konyus, Georgy Ėduardovich: brother Lev Ėduardovich Konyus (1871-1944), a pianist and composer; settled in Paris ca. 1920, moving in 1935 to Cincinnati)
found: Wikipedia, Feb. 11, 2010(Lev Conus; Lev Eduardovich Conus; Lev Ėduardovich Koni︠u︡s [in Cyrillic]; Lev Eduárdovič Konyús; b. 1871; d. 1944; Russian pianist, music educator, and composer; brother of the composers Georgi Conus and Julius Conus; moved to Paris in 1921, then to US in 1935)
found: Muz. ėnt︠s︡.(Koni︠u︡s, Lev Ėduardovich (1871-1944); pianist, composer, and teacher; son of Ė.K. Koni︠u︡s; emigrated to Cincinnati, 1935)
found: Lyle, W. A dict. of pianists, 1985:p. 66 (Conus, Lev; b. 1871, Moscow, Russia; d. 1944; concert pianist and pf prof. at Moscow Cons.; emigrated to USA 1936, where he died)
found: MGG, 2. Ausg.(under Konjus, Georgij Ėduardovič (actually Conus, Georges): brother Lev (Leo), 1871-1944, pianist)
found: OCLC, Feb. 11, 2010(hdgs.: Conus, Leon; Conus, Léon; usage: Leon Conus [for manifestations of his Fundamentals of piano technique]; Léon Conus [for early-20th cent. arrangements] ; L. Conus)