BROLIN, Alice. Ambarzumian theorem for quantum graphs with magnetic potential. MATHEMATICA SCANDINAVICA, [S. l.], v. 131, n. 2, 2025. DOI: 10.7146/math.scand.a-157030. Disponível em: https://www.mscand.dk/article/view/157030. Acesso em: 5 dec. 2025.