Ivanov I, Yesbayev A, Yessenbayeva G, Ramazanov M. On the solution of boundary value problems by the spectral element method. M [Internet]. 2015 Sep. 29 [cited 2026 Mar. 12];3(79):50-4. Available from: https://mts.buketov.edu.kz/mathematics-vestnik/article/view/47