SCHWIEGER, K.; WAGNER, S. Noncommutative coverings of quantum tori. MATHEMATICA SCANDINAVICA, [S. l.], v. 126, n. 1, p. 99–116, 2020. DOI: 10.7146/math.scand.a-116147. Disponível em: https://www.mscand.dk/article/view/116147. Acesso em: 7 apr. 2025.