Sharip Б., and Yessimova А.Т. “ESTIMATION OF A BOUNDARY VALUE PROBLEM SOLUTION WITH INITIAL JUMP FOR LINEAR DIFFERENTIAL EQUATION”. Bulletin of Abai KazNPU. Series of Physical and mathematical sciences 69, no. 1 (June 3, 2021): 168–173. Accessed April 9, 2025. https://bulletin-phmath.kaznpu.kz/index.php/ped/article/view/239.