@ARTICLE {
        GHLNSisci20,
	AUTHOR = "F. Glaria and C. Hernandez and S. Ladra and G. Navarro and
		  L. Salinas",
	TITLE = "Compact Structure for Sparse Undirected Graphs based on a 
		 Clique Graph Partition",
	JOURNAL = "Information Sciences",
	VOLUME = 544,
	PAGES = "485--499",
        YEAR = 2021,
        }