FARENICK, Douglas; PAULSEN, Vern I. Operator system quotients of matrix algebras and their tensor products. MATHEMATICA SCANDINAVICA, [S. l.], v. 111, n. 2, p. 210–243, 2012. DOI: 10.7146/math.scand.a-15225. Disponível em: https://www.mscand.dk/article/view/15225. Acesso em: 5 dec. 2025.