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2. Biodiesel—the Comprehensive Handbook;Mittelbach,2004
3. Effects of biodiesel blends on vehicle emissions. Fiscal year 2006 annual operating plan milestone 10.4;McCormick,2006
4. Standard specification for diesel fuel oils, ASTM D975-08a,2008
5. Standard specification for diesel fuel oil, biodiesel blend (B6 to B20), ASTM D7467-08a,2008