Conejero, M. A., M. F. Neves, and M. J. A. Pinto. “ENVIRONMENTAL SCENARIOS FOR MANDATORY BIO-FUEL BLENDING TARGETS: AN APPLICATION OF INTUITIVE LOGICS”. Future Studies Research Journal: Trends and Strategies, vol. 2, no. 1, June 2010, pp. 99-136, doi:10.24023/FutureJournal/2175-5825/2010.v2i1.23.