FARENICK, Douglas; PAULSEN, Vern I. Operator system quotients of matrix algebras and their tensor products. Mathematica Scandinavica, Berkeley, CA, United States, v. 111, n. 2, p. 210–243, 2012. DOI: 10.7146/math.scand.a-15225. Disponível em: https://journals.msp.org/mscand/article/view/472. Acesso em: 24 jul. 2026.