On Pairs of Disjoint Hop Dominating Sets in Graphs. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 18, n. 3, p. 6536, 2025. DOI: 10.29020/nybg.ejpam.v18i3.6536. Disponível em: https://www.ejpam.com/ejpam/article/view/6536. Acesso em: 23 feb. 2026.