Bernal, José Mauricio, Lizeth Katherine Tinoco Navarro, Luz Angela Torres Tacha, Dionisio Humberto Malagón, and Dolly Montoya. 2013. “Evaluating Colombian Clostridium Spp. Strains’ Hydrogen Production Using Glycerol As Substrate”. Electronic Journal of Biotechnology 16 (2). Valparaíso, Chile. https://preprints.pucv.cl/index.php/ejbiotechnology/article/view/v16n2-4.