Lasuriya, R. A. (2006) “Structural properties of functions defined on a sphere on the basis of Φ-strong approximation”, Ukrains’kyi Matematychnyi Zhurnal, 58(1), pp. 20–25. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/3431 (Accessed: 29March2024).