1. W. B. Bush, Proceedings of the 4th Symp. on RGD (Academic Press, New York, 1967), p. 939.
2. V. S. Nikol’skiĭ, Proceedings of Gagarin’s Readings (Nauka, Moscow, 1986), p. 197.
3. M. M. Kuznetsov and V. S. Nikol’skiĭ, Uch. Zap. TsAGI 16(3), 38 (1985).
4. A. I. Erofeev and V. A. Perepukhov, Uch. Zap. TsAGI 7(1), 102 (1976).
5. H. K. Cheng and G. Emanuel, AIAA J. 33, 385 (1995).