KOPPINEN, M. On the composition factors of Weyl modules. MATHEMATICA SCANDINAVICA, [S. l.], v. 51, p. 212–216, 1982. DOI: 10.7146/math.scand.a-11975. Disponível em: https://www.mscand.dk/article/view/11975. Acesso em: 4 may. 2024.