LESCOP, Christine. A combinatorial definition of the Θ-invariant from Heegaard diagrams. North-Western European Journal of Mathematics, [S. l.], n. 2, p. 17–86, 2016. Disponível em: https://nwejm.univ-lille.fr/index.php/nwejm/article/view/59.. Acesso em: 18 oct. 2024.