PLOTNIKOV, A. V. Differentiation of Multivalued Mappings. $T$-Derivative. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 52, n. 8, p. 1119–1126, 2000. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4516. Acesso em: 7 apr. 2025.