Microbial diversity in a horizontal-flow anaerobic immobilized biomass reactor treating ethanol and benzene at sulfate reducing conditions by means of denaturant gradient gel electrophoresis - Cattony, Eduardo Bosco Mattos; Chinalia, Fábio Alexandre; Zaiat, Marcelo; Foresti, Eugenio; Varesche, Maria Bernadete Amancio (Taller y Simposio Latinoamericano sobre Digestion Anaerobia, 2005)