1. Convergent–divergent nozzle discharge characteristics in the transition regime between free molecule flow and continuum flow, ASME Paper 63-WA-94;Smetana,1963
2. Nozzle characteristics in the transition regime between continuum and free molecular flow;Milligan;AIAA Journal,1964
3. C.L. Britton, R.W. Caron, Unchoking pressure ratio for critical flow venturis, paper presented at ASME Fluid Engineering Division Summer Meeting, 1997.
4. Study of the Standard of Gas Flow Rate using Sonic Nozzles and Its Application Techniques;Ishibashi,1996
5. Effects of instabilities on flow rates in small sonic nozzles;Von Lavante,1998