AHMAD B, NTOUYAS SK, ALSAEDI A, WALI AB. Existence results for a coupled system of higher-order nonlinear differential equations with integral-multipoint boundary conditions. Stud. Univ. Babeş-Bolyai Math. [Internet]. 2025 Jun. 2 [cited 2025 Jul. 30];79(2):233–249. Available from: https://studia.reviste.ubbcluj.ro/index.php/subbmathematica/article/view/9238