Денисюк В, Терещук Г. Trigonometric splines in problems of constructing approximate solutions of the first boundary value problems for ordinary differential equations of second order. Proceedings of National Aviation University [Internet]. 2009 Feb. 1 [cited 2026 Jun. 13];39(2):169-72. Available from: http://jrnl.kai.edu.ua/index.php/visnik/article/view/1734