Mamanov, M., Khasanov, G. и Madatova, Z. (2026) «Optimal Control Problem for an Impulsive Systems of FunctionalDifferential Equations with a Nonlinear Function under the Sign of a First-Order Differential», Journal of Osh State University. Differential Equations, (1), сс. 67–77. доступно на: https://journal.oshsu.kg/index.php/diffeq/article/view/3581 (просмотрено: 18 август 2026).