YANG, Chenxu; MAO, Yaping; GUTMAN, Ivan; TONG, Qinghe. On the Lanzhou index of graphs. Journal of Algebra Combinatorics Discrete Structures and Applications, [S. l.], v. 10, n. 3, p. 131–147, 2023. DOI: 10.13069/jacodesmath.v10i3.237. Disponível em: https://www.jacodesmath.com/index.php/jacodesmath/article/view/237. Acesso em: 12 sep. 2026.