A.T.Assanova, B.Zh.Alikhanova, и K.Zh.Nazarova. «WELL-POSEDNESS OF A NONLOCAL PROBLEM WITH INTEGRAL CONDITIONS FOR THIRD ORDER SYSTEM OF THE PARTIAL DIFFERENTIAL EQUATIONS». Academic Scientific Journal of Computer Science, no. 5 (август 15, 2021): 33–41. просмотрено декабрь 15, 2025. http://89.250.84.46/physics-mathematics/article/view/4328.