1. Efflux of Gases Through Orifices—Kinetic Theory;Korvin-Kroukovsky;Journal of the Franklin Institute,1938
2. A Machine for Testing Steam Turbine Nozzles by the Reaction Method;Warren,1926
3. Proceedings Institution of Mechanical Engineers;Steam Nozzle Research,1925
4. Joseph A. Polson, Joseph G. Lowther and Benjamin J. Wilson. The Flow of Air Through Circular Orifices with Rounded Approach. Bulletin No. 207, Engineering Experimental Station, University of Illinois, page 40, Table 14.
5. Earle H. Kennard. “Kinetic Theory of Gases,” First Edition, Chapter VI, Sec. 147, Quantum Theory of Specific Heat, p. 255, McGraw-Hill Book Co., New York and London.