MUHLY, Paul S.; SOLEL, Baruch. On the Simplicity of some Cuntz-Pimsner Algebras. MATHEMATICA SCANDINAVICA, [S. l.], v. 83, n. 1, p. 53–73, 1998. DOI: 10.7146/math.scand.a-13842. Disponível em: https://www.mscand.dk/article/view/13842. Acesso em: 5 dec. 2025.