THOMAS, E. Integrality relations on smooth manifolds. MATHEMATICA SCANDINAVICA, [S. l.], v. 39, p. 195–231, 1976. DOI: 10.7146/math.scand.a-11657. Disponível em: https://www.mscand.dk/article/view/11657. Acesso em: 29 apr. 2024.