CHOW, Hing Lun. 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://tidsskrift.dk/math/article/view/11498. Acesso em: 14 aug. 2026.