KEHLET, Esben T. Locally compact $F$-spaces, sub-stonean spaces and quotients of locally compact groups. Mathematica Scandinavica, Berkeley, CA, United States, v. 68, p. 269–272, 1991. DOI: 10.7146/math.scand.a-12361. Disponível em: https://journals.msp.org/mscand/article/view/1269. Acesso em: 24 jul. 2026.