“L1 Existence and Uniqueness of Entropy Solutions to Nonlinear Multivalued Elliptic Equations With Homogeneous Neumann Boundary Condition and Variable Exponent”. Journal of Partial Differential Equations 27, no. 1 (March 5, 2014): 1–27. Accessed December 6, 2025. https://www.global-sci.com/index.php/jpde/article/view/14943.