TY - JOUR AU - Shapour Heidarkhani AU - Farahnaz Ayazi TI - Critical Point Approaches for a Class of Differential Equations with Sturm-Liouville Type Nonhomogeneous Boundary Conditions JO - Kragujevac Journal of Mathematics PY - 2025 SP - 503 VL - 49 IS - 4 UR - http://geodesic.mathdoc.fr/item/KJM_2025_49_4_a0/ LA - en ID - KJM_2025_49_4_a0 ER -