[1]
O. Y. Radchenko and S. Y. Yanchenko, “Approximative characteristics of the Nikol’skii – Besov classes of functions $S_{1, θ}^r B(\mathbb{R}^d)$”, Ukr. Mat. Zhurn., vol. 71, no. 10, pp. 1405-1421, Oct. 2019.