1. Grober, H., Erk, S., and Grigull, U., Fundamentals of Heat Transfer, McGraw-Hill, New York, 1961, pp.22S-233.
2. 2Geidt, W., Principles of Engineering Heat Transfer,!). Van Nostrand, Princeton, N.J., 1957, pp.150-155.
3. Thomson, A. and Harshbarger, F. "Some Comments on the Fluid Dynamics of Missile Trails," (U) Project Firefly1960, Vol. Ill, Missile Trail Mechanisms, AFCRL256(III), Air Force Cambridge Research Lab., Cambridge,Mass., 1961, pp.7141-7153.