KOCK, J. Characteristic numbers of rational curves with cusp or prescribed triple contact. MATHEMATICA SCANDINAVICA, [S. l.], v. 92, n. 2, p. 223–245, 2003. DOI: 10.7146/math.scand.a-14402. Disponível em: https://www.mscand.dk/article/view/14402. Acesso em: 28 apr. 2024.