Hop Independent Sets in Graphs. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 15, n. 2, p. 467–477, 2022. DOI: 10.29020/nybg.ejpam.v15i2.4350. Disponível em: https://www.ejpam.com/index.php/ejpam/article/view/4350. Acesso em: 4 dec. 2024.