Roitberg, Y.A. and Sklyarets, .A.V. (1996) “Sobolev problem in the complete scale of Banach Spaces”, Ukrains’kyi Matematychnyi Zhurnal, 48(11), pp. 1555–1563. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/5209 (Accessed: 14 April 2025).