Babakhanian, Ararat Cohomological methods in group theory / Ararat Babakhanian - New York : Marcel Dekker, 1972 - iii, 241 p. : ill. ; 23 cm. - Pure and applied mathematics a series of monographs and textbooks . p. 231-235 ISBN: 0824710312 Subjects--Topical Terms: Groups, TheoryAlgebra, Homological