Vertex N-magic total labeling of Jahangir, Octopus, and cycle-star graphs with applications to chemical reaction networks and water pollution. Nonlinear Studies, [S. l.], v. 33, n. 1, p. 441–446, 2026. Disponível em: https://nonlinearstudies.com/index.php/nonlinear/article/view/4235. Acesso em: 28 feb. 2026.