KALISZEWSKI, S.; QUIGG, J.; ROBERTSON, D. Coactions on Cuntz-Pimsner Algebras. Mathematica Scandinavica, Berkeley, CA, United States, v. 116, n. 2, p. 222–249, 2015. DOI: 10.7146/math.scand.a-21161. Disponível em: https://journals.msp.org/mscand/article/view/391. Acesso em: 24 jul. 2026.