Coşkun H, Kabataş A. Asymptotic Approximations of Eigen-Functions for Regular Sturm-Liouville Problems with Eigenvalue Parameter in the Boundary Condition for Integrable Potential. Math. Scand. [Internet]. 2013 Sep. 1 [cited 2026 Aug. 13];113(1):143-60. Available from: https://tidsskrift.dk/math/article/view/15486