Puchuri, L. (2020) «About the stability between a foliation of degree two and the pencil of conics that de?nes it», Pro Mathematica, 31(61), pp. 33–52. Disponible en: https://revistas.pucp.edu.pe/index.php/promathematica/article/view/23267 (Accedido: 23 diciembre 2025).