L. L. Martins, E. S. de Souza, H. J. P. S. Ribeiro, and G. F. da Cruz, “COMPOSITIONAL VARIABILITY IN BITUMENS FROM EOLIC SEDIMENTARY FACIES OF PIRAMBÓIA FORMATION, PARANÁ BASIN, BRAZIL: CHARACTERIZING BIODEGRADATION”, Geochim. Bras., vol. 29, no. 2, p. 154, May 2016.