Kopach M, Obshta A, Shuvar B. An application of analogues of two-sided Kurpel’s methods to ordinary differential equations. Carpathian Math. Publ. [Internet]. 2010 Dec. 30 [cited 2024 Apr. 16];2(2):48-54. Available from: https://scijournals.pnu.edu.ua/index.php/cmp/article/view/3966