1.
Lasuriya RA. Multiple Fourier Sums on Sets of $\bar \psi$ -Differentiable Functions (Low Smoothness). Ukr. Mat. Zhurn. [Internet]. 2003Jul.25 [cited 2024May21];55(7):911-8. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/3966