Mansimov КБо, Suleymanova ШШк. Pontryagin’s Maximum Principle Analog and Linearized Necessary Conditions of Optimality in One Nonlinear Control Problem of a Gurs–Darboux System With a Variable Structure. Вест. ПГУ. Мат. Мех. Инф. [Internet]. 2023 Dec. 19 [cited 2025 Apr. 5];(4 (63):36-51. Available from: https://press.psu.ru/index.php/Math/article/view/7828