M.K. Dauylbayev, N. Atakhan, A.E. Mirzakulova. ASYMPTOTIC EXPANSION OF SOLUTION OF GENERAL BVP WITH INITIAL JUMPS FOR HIGHER-ORDER SINGULARLY PERTURBED INTEGRO-DIFFERENTIAL EQUATION . PMS [Интернет]. 30 декабрь 2018 г. [цитируется по 18 январь 2025 г.];(6):28-36. доступно на: http://189185.vm7pq.group/physics-mathematics/article/view/4337