BANCHOFF, T. F.; WHITE, J. H. The behaviour of the total twist and self-linking number of a closed space curve under inversions. MATHEMATICA SCANDINAVICA, [S. l.], v. 36, p. 254–262, 1975. DOI: 10.7146/math.scand.a-11574. Disponível em: https://www.mscand.dk/article/view/11574. Acesso em: 6 may. 2024.