1. Wintuckyand WT, Stewart WL (1957) Analysis of two-stage counter-rotating turbine efficiencies in terms of work and speed requirements. NACA report, RM E57L05
2. Louis JF (1985) Axial flow contra-rotating turbines. In: ASME proceedings of the international gas turbine conference and exhibit, Texas, 85-GT-218
3. Ozgur C, Nathan GK (1971) Study of contra-rotating turbines based on design efficiency. J Basic Eng 93:395–404
4. Ji LC, Quan XB, Wel L, Xu JZ (2001) A vaneless counter rotating turbine design towards limit of specific work ratio. In: International symposium on air breathing engines, Bangalore, 2001-1062
5. Dring RP, Joslyn HD, Blair MF (1987) The effect of inlet turbulence and rotor/stator interactions on the aerodynamics and heat transfer of large scale rotating turbine model. NASA report, CR 179469