1. G. Yu. Stepanov, Hydrodynamics of Turbine Cascades [in Russian], Fizmatgiz, Moscow (1962).
2. G. L. Grodzovskii, A. A. Nikol'skii, G. P. Svishchev, and G. I. Taganov, Supersonic Gas Flows in Perforated Boundaries [in Russian], Mashinostroenie, Moscow (1967).
3. H. J. Lichtfuss and H. Starken, ?Supersonic cascade flow,? in: Progress Aerospace Sci., Vol. 15, Pergamon Press, Oxford (1974).
4. M. R. Fink, ?Shock wave behavior in transonic compressor noise generation,? Pap. ASME, No. GT-7 (1971).
5. A. N. Kraiko and A. A. Osipov, ?Damping of a periodic sequence of weak shock waves in channels with ?sound-absorbing? walls,? Izv. Akad. Nauk SSSR, Mekh. Zhidk. Gaza, No. 4 (1976).