Gürkanli, A.T. and Sandikçi, A. (2006) “The space $\Omega^p_m(R^d)$ and some properties”, Ukrains’kyi Matematychnyi Zhurnal, 58(1), pp. 139–145. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/3441 (Accessed: 5 December 2025).