YURKO, V. Inverse problems for higher order differential systems with regular singularities on star-type graphs. Tamkang Journal of Mathematics, [S. l.], v. 46, n. 3, p. 257–268, 2015. DOI: 10.5556/j.tkjm.46.2015.1754. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/1754. Acesso em: 22 dec. 2024.