ARCHBOLD, R. J.; KANIUTH, E. On the real rank of $C^\ast$-algebras of nilpotent locally compact groups. MATHEMATICA SCANDINAVICA, [S. l.], v. 110, n. 1, p. 99–110, 2012. DOI: 10.7146/math.scand.a-15199. Disponível em: https://www.mscand.dk/article/view/15199. Acesso em: 27 apr. 2024.