COŞKUN, H.; KABATAŞ, A. Asymptotic Approximations of Eigen-Functions for Regular Sturm-Liouville Problems with Eigenvalue Parameter in the Boundary Condition for Integrable Potential. MATHEMATICA SCANDINAVICA, [S. l.], v. 113, n. 1, p. 143–160, 2013. DOI: 10.7146/math.scand.a-15486. Disponível em: https://www.mscand.dk/article/view/15486. Acesso em: 21 nov. 2024.