GOLUBKOV, A. A.; KURYSHOVA , Y. V. Inverse problem for Sturm-Liouville operators on a curve. Tamkang Journal of Mathematics, [S. l.], v. 50, n. 3, p. 349–359, 2019. DOI: 10.5556/j.tkjm.50.2019.3368. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/3368. Acesso em: 26 may. 2026.