Baues, Hans Joachim, 1943- The algebra of secondary cohomology operations / Hans Joachim Baues. - Basel ; Boston : Birkhäuser, c2006. - xxxii, 483 p. : il. ; 24 cm. - Progress in mathematics ; v. 247 . Includes bibliographical references (p. [475]-478) and index. ISBN: 3764374489 Descriptores--Materias: Category theory.Homological algebra.Algebraic topology.Spectral sequences.