FARSI, C.; WATLING, N. $C^*$-Algebras of Dynamical Systems on the Non-Commutative Torus. MATHEMATICA SCANDINAVICA, [S. l.], v. 75, p. 101–110, 1994. DOI: 10.7146/math.scand.a-12506. Disponível em: https://www.mscand.dk/article/view/12506. Acesso em: 2 may. 2024.