Mukhigulashvili S, Manjikashvili M. Dirichlet BVP for the second order nonlinear ordinary differential equations at resonance. MMA [Internet]. 2019 Oct. 25 [cited 2025 Aug. 14];24(4):585-97. Available from: https://transport.vilniustech.lt/index.php/MMA/article/view/10202