FEDOSEEV, A. Inverse problems for differential equations on the half-line having a singularity in an interior point. Tamkang Journal of Mathematics, [S. l.], v. 42, n. 3, p. 343–354, 2011. DOI: 10.5556/j.tkjm.42.2011.879. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/879. Acesso em: 5 may. 2024.