Kalimbetov B, Etmishev K. Asymptotic solutions of scalar integro-differential equations with partial derivatives and with rapidly oscillating coefficients. M [Internet]. 2020 Mar. 30 [cited 2025 Oct. 14];97(1):52-67. Available from: https://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/335