KAIJSER, Sten; SINCLAIR, Allan M. Projective tensor products of $C^*$-algebras. Mathematica Scandinavica, Berkeley, CA, United States, v. 55, p. 161–187, 1984. DOI: 10.7146/math.scand.a-12074. Disponível em: https://journals.msp.org/mscand/article/view/1598. Acesso em: 25 jul. 2026.