GOVER, E.; RAGUSA, A. Koszul complexes with isomorphic homology. MATHEMATICA SCANDINAVICA, [S. l.], v. 60, p. 39–51, 1987. DOI: 10.7146/math.scand.a-12170. Disponível em: https://www.mscand.dk/article/view/12170. Acesso em: 4 may. 2024.