Radchenko OY, Yanchenko SY. Approximative characteristics of the Nikol’skii – Besov classes of functions $S_{1, θ}^r B(\mathbb{R}^d)$. Ukr. Mat. Zhurn. [Internet]. 2019Oct.25 [cited 2024Nov.21];71(10):1405-21. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/1523