ARICI, Francesca; RENNIE, Adam. The Cuntz-Pimsner extension and mapping cone exact sequences. MATHEMATICA SCANDINAVICA, [S. l.], v. 125, n. 2, p. 291–319, 2019. DOI: 10.7146/math.scand.a-115634. Disponível em: https://tidsskrift.dk/math/article/view/115634. Acesso em: 13 aug. 2026.