SCHMITT, L. M.; WITTSTOCK, G. Characterisation of matrix-ordered standard forms of W*-algebras. MATHEMATICA SCANDINAVICA, [S. l.], v. 51, p. 241–260, 1982. DOI: 10.7146/math.scand.a-11979. Disponível em: https://www.mscand.dk/article/view/11979. Acesso em: 5 may. 2024.