Moussa, H., M. Rhoudaf, and H. Sabiki. “Existence Results for a Perturbed Dirichlet Problem Without Sign Condition in Orlicz Spaces”. Ukrains’kyi Matematychnyi Zhurnal 72, no. 4 (March 28, 2020): 509-526. Accessed April 25, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/373.