KURYLEV, Yaroslav; LASSAS, Matti. Multidimensional Gel’fand Inverse Boundary Spectral Problem: Uniqueness and Stability. CUBO, A Mathematical Journal, [S. l.], v. 8, n. 1, p. 41–59, 2006. Disponível em: https://cubo.ufro.cl/index.php/cubo/article/view/1611. Acesso em: 12 oct. 2025.