Zorii, N. V. (1996) “A noncompact variational problem in the theory of riesz potentials. II”, Ukrains’kyi Matematychnyi Zhurnal, 48(5), pp. 603-613. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/5293 (Accessed: 18May2024).