Брисіна, І.В. and Макарічев, В.О. 2016. Approximation properties of generalized Fup-functions. Visnyk of V. N. Karazin Kharkiv National University. Ser. Mathematics, Applied Mathematics and Mechanics. 84, (Dec. 2016), 61-92. DOI:https://doi.org/10.26565/2221-5646-2016-84-06.