POPOV, V. I. Rapid localization of trajectories in the problem of optimal control . Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 44, n. 10, p. 1396–1401, 1992. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8237. Acesso em: 5 dec. 2025.