ERFANIAN, H. R.; SKANDARI, M. H. N.; KAMYAD, A. V. A New Approach for Generalized Partial Derivatives of Non-smooth Functions. Walailak Journal of Science and Technology (WJST), [S. l.], v. 11, n. 12, p. 1031–1040, 2014. Disponível em: https://wjst.wu.ac.th/index.php/wjst/article/view/573. Acesso em: 27 apr. 2024.