Mamanov, M., и G. Khasanov. «Optimal Control for a Nonlinear System of Integro-Differential Equations of Fractional Order». Journal of Osh State University. Differential Equations, вып. 2, июль 2026 г., сс. 25-39, https://journal.oshsu.kg/index.php/diffeq/article/view/4821.