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3. Howitt, J. S., and Montierth, M. R., SAE Tech. Paper 81104, 1981.
4. Konstandopoulos, A. G., Gratz, L. D., Johnson, J. H., Bagley, S. T. and Leddy, D. G. (1988). SAE Trans. 97 sec. 6 (J. Engines) Paper No. 880009, pp. 37–53.
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