DONKIN, Stephen. A note on the characters of the projective modules for the infinitesimal subgroups of a semisimple algebraic group. Mathematica Scandinavica, Berkeley, CA, United States, v. 51, p. 142–150, 1982. DOI: 10.7146/math.scand.a-11968. Disponível em: https://journals.msp.org/mscand/article/view/1680. Acesso em: 25 jul. 2026.