The product formula in cohomological Hall algebras. São Paulo Journal of Mathematical Sciences, [S. l.], v. 7, n. 1, p. 59–68, 2013. DOI: 10.11606/issn.2316-9028.v7i1p59-68. Disponível em: https://revistas.usp.br/spjournal/article/view/80072.. Acesso em: 28 nov. 2024.