1. 1) Frössel, W.: Flow in smooth straight pipes at velocities above and below sound velocity, NACA Tech. Memo, No. 844, pp. 1-21 (1938)
2. 2) Shapiro, A.H.: The Dynamics and Thermodynamics of Compressible Fluid Flow, Vol. 1, p. 184 and pp. 236-238, Ronald Press (1954)
3. 3) Benedict, R.P., Steltz, W.G.: A Generalized Approach to One-Dimensional Gas Dynamics, Trans. ASME, J.E. Power, pp. 49-68 (1962), https://doi.org/10.1115/1.3673377
4. 4) Benedict, R.P., Carlucci, N.A.: Flow with losses, Trans. ASME, J.E. Power, pp. 37-49 (1965), https://doi.org/10.1115/1.3678137
5. 5) Wartelle, C.: Caractéristiques de débit des apparreils á fluides compressibles, Les Mémoires Techniques du CETIM, No. 13, September, pp. 1-54 (1972),