On the $l_s$-norm Generalization of the NLS method for the Bass model. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 6, n. 4, p. 435–450, 2017. Disponível em: https://www.ejpam.com/index.php/ejpam/article/view/1867.. Acesso em: 27 apr. 2024.