Kopach М, Obshta A, Shuvar B. Analogues of bilateral Kurpel’s methods for differential equations with aftereffect. Carpathian Math. Publ. [Internet]. 2012 Dec. 27 [cited 2024 Nov. 24];4(2):268-74. Available from: https://ktipe.pnu.edu.ua/index.php/cmp/article/view/2271