SUND, Terje. Remarks on locally compact group extensions. MATHEMATICA SCANDINAVICA, [S. l.], v. 69, p. 199–210, 1991. DOI: 10.7146/math.scand.a-12378. Disponível em: https://tidsskrift.dk/math/article/view/12378. Acesso em: 14 aug. 2026.