Yuldashev, Tursun, и Mahkambek Babayev. «Boundary Value Problem for a Nonlinear Partial Differential Equation». Journal of Osh State University. Differential Equations, no. 2 (июль 1, 2026): 40–54. просмотрено июль 27, 2026. https://journal.oshsu.kg/index.php/diffeq/article/view/4822.