Vynnytskyi, B.V., and V.M. Dilnyi. “On Estimations of Solutions of One Convolution Type Equation”. Carpathian Mathematical Publications 5, no. 1 (June 18, 2013): 30–35. Accessed May 2, 2024. https://scijournals.pnu.edu.ua/index.php/cmp/article/view/3646.