[1]
“Order estimates of functionals in terms of which the best $n$-term approximations of classes ${\cal F}_{q,r}^{\psi}$ are expressed”., ЗПІМ, vol. 11, no. 3, pp. 287–314, Jun. 2014, Accessed: Sep. 21, 2026. Available: https://trim.imath.kiev.ua/index.php/trim/article/view/82