SAEKI, Sadahiro; STROMBERG, Karl. Measurable subgroups and nonmeasurable characters. MATHEMATICA SCANDINAVICA, [S. l.], v. 57, p. 359–374, 1985. DOI: 10.7146/math.scand.a-12122. Disponível em: https://tidsskrift.dk/math/article/view/12122. Acesso em: 14 aug. 2026.