KALISZEWSKI, S.; QUIGG, J.; ROBERTSON, D. Coactions on Cuntz-Pimsner Algebras. MATHEMATICA SCANDINAVICA, [S. l.], v. 116, n. 2, p. 222–249, 2015. DOI: 10.7146/math.scand.a-21161. Disponível em: https://www.mscand.dk/article/view/21161. Acesso em: 18 apr. 2024.