THOMSEN, K. A partial classification result for noncommutative tori. MATHEMATICA SCANDINAVICA, [S. l.], v. 61, p. 134–148, 1987. DOI: 10.7146/math.scand.a-12195. Disponível em: https://www.mscand.dk/article/view/12195. Acesso em: 6 may. 2024.