1. A new method of cooling gas-engines;Hopkinson;J R Soc Arts,1913
2. The high-speed internal-combustion engine;Ricardo,1953
3. Effect of water injection on cooling characteristics of Pratt and Whitney, R2800 engine;Koenig;Naca Arr,1943
4. Bell III, Albert H y Johnson, Jesse F, «Hybrid gas turbine rotor», US Patent 4,639,194.
5. Water addition to practical combustion systems-Concepts and applications;Dryer;Symp Int Combust,1977