TY - JOUR PY - 2009 J2 - Renew. Energy SN - 0960-1481 T2 - Renewable Energy VL - 34 IS - 1 DO - 10.1016/j.renene.2008.04.030 TI - Biofuels in the US - Challenges and Opportunities UR - https://www.cheric.org/research/tech/periodicals/view.php?seq=1269791 KW - Biofuels KW - Ethanol KW - Biodiesel KW - Renewable fuels KW - Energy policy AU - Hoekman SK SP - 14 EP - 22 LA - English ER -