OSAULENKO, R. Generalization of the classical derivative function at a point and its application. Transactions of Institute of Mathematics, the NAS of Ukraine, [S. l.], v. 15, n. 1, p. 100–113, 2020. Disponível em: https://trim.imath.kiev.ua/index.php/trim/article/view/442. Acesso em: 21 aug. 2024.