VALQUI HAASE, Christian Holger. Cohomología de Hochschild: deformaciones y extensiones. Pro Mathematica, [S. l.], v. 25, n. 50, p. 155–168, 2011. Disponível em: https://revistas.pucp.edu.pe/index.php/promathematica/article/view/2668. Acesso em: 16 dic. 2025.