PORTER, T. A Cech-Hurewicz Isomorphism Theorem for Movable Metric Compacta. MATHEMATICA SCANDINAVICA, [S. l.], v. 33, p. 90–96, 1973. DOI: 10.7146/math.scand.a-11474. Disponível em: https://www.mscand.dk/article/view/11474. Acesso em: 29 mar. 2024.