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2. Clinton WJ (1993): Executive Order 12844: Federal Use of Alternative Fueled Vehicles. 58 Federal Register 21885
3. Clinton WJ (1996): Executive Order 13031: Federal Alternative Fueled Vehicle Leadership. 61 Federal Register 66529
4. Clinton WJ (2000): Executive Order 13149: Greening the Government Through Federal Fleet and Transportation Efficiency. 65 Federal Register 24607
5. Lave LB, Hendrickson CT, McMichael FC (1995): Environmental Implications of Electric Cars. Science 268, 993–995