KOVAL’CHUK, T. V.; KRAVETS, V. I.; MOHYL'OVA, V. V.; STANZHITSKII, A. N. Application of the method of averaging to the problems of optimal control over functional-differential equations. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 70, n. 2, p. 206–215, 2018. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1551. Acesso em: 5 dec. 2025.