Fedunyk-Yaremchuk V O., Hembars'ka S.B., “Approximation of Classes of Periodic Functions of Several Variables With Given Majorant of Mixed Moduli of Continuity”, Carpathian Math. Publ., 13:3 (2021), 838–850
Д. В. Горбачев, “Точные неравенства Бернштейна — Никольского для полиномов и целых функций экспоненциального типа”, Чебышевский сб., 22:5 (2021), 58–110
M. Hovemann, W. Sickel, “Besov-type spaces and differences”, Eurasian Math. J., 11:1 (2020), 25–56
Д. В. Горбачев, И. А. Мартьянов, “Границы полиномиальных констант Никольского в $L^p$ с весом Гегенбауэра”, Тр. ИММ УрО РАН, 26, № 4, 2020, 126–137 ; D. V. Gorbachev, I. A. Martyanov, “Bounds of the Nikol'skii Polynomial Constants in $L^{p}$ with Gegenbauer Weight”, Proc. Steklov Inst. Math. (Suppl.), 315, suppl. 1 (2021), S117–S127
H. H. Bang, V. N. Huy, “A Bernstein–Nikol'skii inequality for weighted Lebesgue spaces”, Владикавк. матем. журн., 22:3 (2020), 18–29
Platonov S.S., “Some Problems in the Theory of Approximation of Functions on Locally Compact Vilenkin Groups”, P-Adic Numbers Ultrametric Anal. Appl., 11:2 (2019), 163–175
Г. А. Акишев, “О точности неравенства разных метрик для тригонометрических полиномов в обобщенном пространстве Лоренца”, Тр. ИММ УрО РАН, 25, № 2, 2019, 9–20
Fedunyk-Yaremchuk V O. Hembars'ka S.B., “Estimates of Approximative Characteristics of the Classes B-P,Theta(Omega) of Periodic Functions of Several Variables With Given Majorant of Mixed Moduli of Continuity in the Space l-Q”, Carpathian Math. Publ., 11:2 (2019), 281–295
Yessenbayeva G.A., Yesbayev A.N., Poppell H., “On the Inequality of Different Metrics For Trigonometric Polynomials”, Bull. Karaganda Univ-Math., 93:1 (2019), 102–107
Chunaev P., Danchenko V., “Quadrature Formulas With Variable Nodes and Jackson-Nikolskii Inequalities For Rational Functions”, J. Approx. Theory, 228 (2018), 1–20