1. Perlack RD, Wright LL, Turhollow AF, Graham RL, Stokes BJ, Erbach DC (2005) Biomass as feedstock for a bioenergy and bioproducts industry: the technical feasibility of a billion-ton annual supply. DTIC Document. ORNL/TM-2005/66
2. Perlack RD, Eaton LM, Turhollow Jr AF, Langholtz MH, Brandt CC, Downing ME, Graham RL, Wright LL, Kavkewitz JM, Shamey AM (2011) US billion-ton update: biomass supply for a bioenergy and bioproducts industry. ORNL/TM-2011/224
3. Humbird D, Davis R, Tao L, Kinchin C, Hsu D, Aden A, Schoen P, Lukas J, Olthof B, Worley M (2011) Process design and economics for biochemical conversion of lignocellulosic biomass to ethanol. National Renewable Energy Laboratory Technical Report NREL. TP-5100-47764,
4. Poet-DSM (2013) POET and DSM to make advanced biofuels a reality by 2013. http://poet-dsm.com/news/poet-and-dsm.aspx . Accessed 03/30/2015
5. Abengoa (2014) Abengoa celebrates grand opening of its first commercial-scale next generation biofuels plant. http://www.abengoa.com/web/en/noticias_y_publicaciones/noticias/historico/2014/10_octubre/abg_20141017.html . Accessed 03-11-2015