1. Clutter, D. W. & Smith, A. M. O. 1961 Aerosp. Engng. 20,24.
2. Batchelor, G. K. 1952 Proc. Roy. Soc. A,213,349. [Correction in Proc. Camb. Phil. Soc. 51, 361 (1955).]
3. Mattingly, G. E. 1966 Rep. 2146, Hydromech. Div., David Taylor Model Basin.
4. Reid, W. H. 1955 Proc. Camb. Phil. Soc. 51,350.
5. Batchelor, G. K. 1953 The Theory of Homogeneous Turbulence .Cambridge University Press.