1. V. N. Zhigulev and A. M. Tumin, The Onset of Turbulence [in Russian], Nauka, Novosibirsk (1987).
2. V. V. Kozlov and O. S. Ryzhov, Boundary Layer Receptivity: Asymptotic Theory and Experiment [in Russian], VTs AN SSSR, Moscow (1988).
3. E. Kerschen, ?Boundary layer receptivity,? AIAA Pap., No. 1109 (1989).
4. M. E. Goldstein, ?The evolution of Tollmien-Schlichting waves near a leading edge,? J. Fluid Mech.,127, 59 (1983).
5. A. V. Fedorov, ?Development of instability waves in a compressible-gas boundary layer,? Chislenn. Metod. Mekh. Sploshnoi Sredy,13, 144 (1982).