1. J. Araujo, C. Linhares Sales, I. Sau, Weighted coloring on p4-sparse graphs, in: 11es Journées Doctorales en Informatique et Réseaux, Sophia Antipolis, France, 2010.
2. M. Asté, F. Havet, C. Linhares Sales, Grundy number and lexicographic product of graphs, in: Proceedings of International Conference on Relations, Orders and Graphs and their Interaction with Computer Science, ROGICS 2008, 2008.
3. Four classes of perfectly orderable graphs;Chvátal;Journal of Graph Theory,1987
4. S. Foldes, P.L. Hammer, Split graphs, in: Proceedings of the Eighth Southeastern Conference on Combinatorics, Graph Theory and Computing, Louisiana State Univ., Baton Rouge, La., 1977, Utilitas Math., Winnipeg, Man., Congressus Numerantium, No. XIX, 1977, pp. 311–315.
5. p4-laden graphs: a new class of brittle graphs;Giakoumakis;Information Processing Letters,1996