1. Yu. S. Kachanov, V. V. Kozlov, and V. Ya. Levchenko, Origin of Turbulence in Boundary Layer [in Russian], Nauka, Novosibirsk (1982).
2. V. N. Zhigulev, ?Determination of critical Reynolds number for transition from laminar to turbulent boundary layer,? in: Mechanics of Continuous Media [in Russian], Inst. of Theoretical and Applied Mechanics, Siberian Branch, Academy of Sciences of the USSR, Novosibirsk (1981).
3. L. B. Aizin and N. F. Polyakov, Generation of Tollmien-Schlichting Waves by Sound on Isolated Surface Roughness by Fluid Flow [in Russian], Preprint No. 17, Inst. of Theoretial and Applied Mechanics, Siberian Branch, Academy of Sciences of the USSR, Novosibirsk (1979).
4. A. I. Ruban, ?Generation of Tollmien-Schlichting waves by sound,? Izv. Akad. Nauk SSSR, Mekh. Zhidk. Gaza, No. 4 (1984).
5. N. A. Zavol'skii, V. P. Reutov, and G. B. Rybushkina, ?Excitation of Tollmien-Schlichting waves with acoustic scattering and vortex perturbations in boundary layer on wavy surface,? Zh. Prikl. Mekh. Tekh. Fiz., No. 3 (1983).