CHOW, H. L. Limit Measures on Compact Semitopological Semigroups. MATHEMATICA SCANDINAVICA, [S. l.], v. 33, p. 375–381, 1973. DOI: 10.7146/math.scand.a-11498. Disponível em: https://www.mscand.dk/article/view/11498. Acesso em: 3 may. 2024.