1. Meredith, F. W. and A. A. Griffith, Modern Developments in Fluid Dynamics, Vol. 2, Oxford University Press, P 354.
2. Illingworth, C. R., Proc. Cambridge Phil. Soc. 46 (1950) 469.
3. Kakutani, T., ZAMP 12 (1961) 219.
4. Schaaf, S. A. and P. L. Chambre, Flow of Rarefied gases, Princeton University Press, Princeton, N.Y. 1961.
5. Inman, R. M., Appl. Sci. Res., B 11 (1964) 391.