1. Shih, T.-H., Lumley, J. L. & Janicka, J. 1987. Second order modeling of a variable density mixing layer. J. Fluid Mech. 180: 93–116.
2. Zilberman, M., Wygnanski, I., and Kaplan, R.E. 1977. Transitional boundary layer spot in a fully turbulent environment. Phys. Fluids Supp. 20 (10): S258 - S271.
3. Lumley, J.L. 1967. The structure of inhomogeneous turbulent flows. In Atmospheric Turbulence and Radio Wave Propagation, A.M. Yaglom and V.I. Tatarski:, eds.: 166–178. Moscow: Nauka.
4. Loeve, M. 1955. Probability Theory. Van Nostrand, New York.
5. Glauser, M.N., Leib, S.J. and George W.K. 1985. Coherent structure in the axisymmetric jet mixing layer. Proc. of the 5th Symp. of the Turbulent Shear Flow Conf Cornell University. (Springer selected lectures from TSF).