RUNDE, V. Dual Banach algebras: Connes-amenability, normal, virtual diagonals, and injectivity of the predual bimodule. MATHEMATICA SCANDINAVICA, [S. l.], v. 95, n. 1, p. 124–144, 2004. DOI: 10.7146/math.scand.a-14452. Disponível em: https://www.mscand.dk/article/view/14452. Acesso em: 5 may. 2024.