Boffi, G., Threading homology through algebra : selected patterns / Giandomenico Boffi, David A. Buchsbaum - xi, 255 páginas - Oxford mathematical monographs . ISBN: 0198524994 0-19-852499-1 Subjects--Topical Terms: Álgebra homológica LC Class. No.: QA169 / B64 Dewey Class. No.: 512.64