Doroshenko, Dmytro     A survey of Ukrainian historiography [Текст] / Dmytro Doroshenko // The annals of the Ukrainian academy of arts and sciences in the U.S. Vol. 5/6, N 1/2: Special issue: A survey of Ukrainian historiography/ D. Doroshenko / Ukrainian academy of arts and sciences in the U.S. - New York : Ukrainian Academy of Arts and Sciences in the U.S.,Inc. , 1957. — P.1-456.