1. 1Drell, I. L. and Belles, F. E., 1957, "Survey of Hydrogen Combustion Properties", NACA Research Memorandum E57D24.
2. 3Jonash, E. R., Smoth, A. L. and Hlavin, V. F., 1955, "Low pressure performance of a tubular combustor with gaseous hydrogen," NACA RM E54L30a.
3. Development study of a precooled turbojet engine