Baranovskyi, O. M., Pratsiovytyi, M. V. and Torbin, H. M. (2007) “Topological and metric properties of sets of real numbers with conditions on their expansions in Ostrogradskii series”, Ukrains’kyi Matematychnyi Zhurnal, 59(9), pp. 1155–1168. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/3379 (Accessed: 28March2024).