FOSSUM, R. Injective Moduls over Krull Orders. MATHEMATICA SCANDINAVICA, [S. l.], v. 28, p. 233–246, 1971. DOI: 10.7146/math.scand.a-11020. Disponível em: https://www.mscand.dk/article/view/11020. Acesso em: 19 may. 2024.