“Approximation of functions from isotropic classes $B_{1,\theta}^{\Omega}(\mathbb{R}^d)$ to integer functions of exponential type”, ЗПІМ, vol. 10, no. 1, pp. 169–183, Jul. 2013, Accessed: Aug. 27, 2026. Available: https://trim.imath.kiev.ua/index.php/trim/article/view/162