RAGI PUTHAN VEETTIL; T.V. RAMAKRISHNAN. Introduction to hub polynomial of graphs. Malaya Journal of Matematik, India, v. 8, n. 04, p. 1592–1596, 2020. DOI: 10.26637/MJM0804/0045. Disponível em: https://www.malayajournal.org/index.php/mjm/article/view/1690. Acesso em: 16 jul. 2024.