Optimizing the first eigenvalue of nonlinear quantum graphs. Gulf Journal of Mathematics, [S. l.], v. 17, n. 1, p. 29–43, 2024. DOI: 10.56947/gjom.v17i1.1978. Disponível em: https://www.gjom.org/index.php/gjom/article/view/1978. Acesso em: 19 aug. 2026.