Vinokur, V.V. and Pavlenko, V.N. (2002) “Existence Theorems for Equations with Noncoercive Discontinuous Operators”, Ukrains’kyi Matematychnyi Zhurnal, 54(3), pp. 349–364. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/4071 (Accessed: 6 December 2025).