Estimates of approximation characteristics of classes $B^{\Omega}_{p,\theta}$ of periodic functions of several variables with given majorant of the mixed modulo of continuity. ЗПІМ [Internet]. 2013 Jul. 15 [cited 2026 Sep. 9];10(1):148-60. Available from: https://trim.imath.kiev.ua/index.php/trim/article/view/103