BENDIFFALAH, B. Suite exacte de Mayer-Vietoris d’une extension triangulaire. MATHEMATICA SCANDINAVICA, [S. l.], v. 103, n. 2, p. 186–207, 2008. DOI: 10.7146/math.scand.a-15077. Disponível em: https://www.mscand.dk/article/view/15077. Acesso em: 23 nov. 2024.