CHU, Jing; XU, Feng; ZHOU, Xiaona. THE INDEX OF A SPECIAL BIPARTITE GRAPH. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 35, p. 569–574, 2015. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/6395. Acesso em: 16 aug. 2026.