Parfinovych NV. Exact order of relative widths of classes $W^r_1$ in the space $L_1$. Ukr. Mat. Zhurn. [Internet]. 2005Oct.25 [cited 2024May10];57(10):1409–1417. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/3694