KURINA, G.A.; KALASHNIKOVA, M.A. Minimizing sequences for a linear-quadratic control problem with three-tempo variables under weak nonlinear perturbations. Bulletin of the Karaganda University. Mathematics Series, [S. l.], v. 109, n. 1, p. 94–109, 2023. DOI: 10.31489/2023m1/94-109. Disponível em: http://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/555. Acesso em: 27 aug. 2025.