Filinovskiy, Alexey V. “On the Asymptotic Behavior of Eigenvalues and Eigenfunctions of the Robin Problem With Large Parameter”. Mathematical Modelling and Analysis 22, no. 1 (January 11, 2017): 37-51. Accessed November 22, 2024. https://jest.vgtu.lt/index.php/MMA/article/view/872.