Mel’nikV. S. (2000) “Multivariational Inequalities and Operator Inclusions in Banach Spaces with Mappings of the Class $(S)_{+}$”, Ukrains’kyi Matematychnyi Zhurnal, 52(11), pp. 1513-1523. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/4557 (Accessed: 22November2024).