BECK, I. A note on functors that vanish on indecomposable modules. MATHEMATICA SCANDINAVICA, [S. l.], v. 50, p. 8–18, 1982. DOI: 10.7146/math.scand.a-11939. Disponível em: https://www.mscand.dk/article/view/11939. Acesso em: 1 may. 2024.