STOIMENOW, A. On unknotting numbers and knot trivadjacency. MATHEMATICA SCANDINAVICA, [S. l.], v. 94, n. 2, p. 227–248, 2004. DOI: 10.7146/math.scand.a-14441. Disponível em: https://www.mscand.dk/article/view/14441. Acesso em: 28 mar. 2024.