MOLCHANYUK, I. V.; PLOTNIKOV, A. V. Necessary and sufficient conditions of optimality in the problems of control with fuzzy parameters. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 61, n. 3, p. 384–390, 2009. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3026. Acesso em: 5 dec. 2025.