PIRZADA, Shariefuddin; RASHID, Mir Riyaz Ul. On the forgotten topological index of signed graphs. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 78, n. 1-2, p. 89–90, 2026. DOI: 10.3842/umzh.v78i1-2.8298. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8298. Acesso em: 27 jan. 2026.