1. Reusable launch vehicle propulsion based on the RD-0120 engine;Goncharov,1995
2. Experimental Study of Gas-Flow Separation in Overexpanded Exhaust Nozzles for Rocket Motors;Cowles,1949
3. Approximate method for plug nozzle design;Angelino;AIAA J.,1964
4. Annular Internal-External-Expansion Rocket Nozzles for Large Booster Applications;Connors,1961
5. Spike nozzle contour for optimum thrust;Rao;Planet. Space Sci.,1961