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3. Barsic NJ, Humke AL. Performance and emissions characteristics of a naturally aspirated diesel engine with vegetable oil fuels. SAE 1981, 810262.
4. Pischinger GH, Siekmann RW, Falcon AM. Methyl esters of plant oils as diesel fuels, either straight or in blends. ASAE 1982, August 2–4, p. 198.
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