Yanchenko, S. Y. “Order Estimates for the Approximative Characteristics of Functions from the classes $S_{p,θ}^{Ω} B(R^d)$ With a Given Majorant of Generalized Mixed Modules of Smoothness in the Uniform Metric”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 68, no. 12, Dec. 2016, pp. 1705-14, http://umj.imath.kiev.ua/index.php/umj/article/view/1955.