1. F.A. Vilenskii, T.G. Volkonskaya, V.P. Gryaznov, U.G. Pirumov: Fluid Dyn. 7, 621–627 (1972)
2. E.G. Mezhibovskaya, U.G. Pirumov, V.A. Rubtsov, E.V. Sorokina: Calcu lation of Annular Axisymmetric Nozzles ( Moscow University, Moscow 1961 ) (in Russian)
3. U.G. Pirumov, V.A. Rubtsov: Izv. Akad. Nauk SSSR. Mechanics and Machine-building 6, 15–25 (1961) (in Russian)
4. A.M. Ovsyannikov: Fluid Dyn. 6, 1028–1034 (1971)
5. W.P. Sule, T.J. Muller: AIAA Paper No. 73–137, AIAA 11th Aerospace Sciences Meeting (1973)