MYRHEIM, Jan. A theorem on restricted group representations. Mathematica Scandinavica, Berkeley, CA, United States, v. 37, p. 193–196, 1975. DOI: 10.7146/math.scand.a-11601. Disponível em: https://journals.msp.org/mscand/article/view/2070. Acesso em: 25 jul. 2026.