COSKUN, Haskiz; BASKAYA, Elif. Asymptotics of eigenvalues of regular Sturm-Liouville problems with eigenvalue parameter in the boundary condition for integrable potential. Mathematica Scandinavica, Berkeley, CA, United States, v. 107, n. 2, p. 209–223, 2010. DOI: 10.7146/math.scand.a-15152. Disponível em: https://journals.msp.org/mscand/article/view/545. Acesso em: 24 jul. 2026.