Zh.N. Tasmambetov, N. Rajabov, Zh.K.Ubayeva. THE COORDINATED SOLUTION OF TWO DIFFERENTIAL EQUATIONS IN PRIVATE DERIVATIVES OF THE THIRD ORDER. PMS [Интернет]. 10 август 2019 г. [цитируется по 23 декабрь 2024 г.];(4):83-91. доступно на: http://89.250.84.46/physics-mathematics/article/view/1679