[1]
“Bilinear approximations of the classes $S^{\Omega}_{p,{\theta}}B$ of periodic functions of many variables”, ЗПІМ, vol. 14, no. 3, pp. 332–353, Nov. 2017, Accessed: Sep. 11, 2026. Available: https://trim.imath.kiev.ua/index.php/trim/article/view/326