1. 2Zel'dovich, Ya. B., Leypunskii, O. I., and Librovich, V. B. The Theory of the Unsteady Combustion of Powder, Nauka, Moscow, 1975.
2. A Simplified Model of Unstable Burning in Solid Propellants
3. Stability criterion for steady-state burning of powders
4. 5Novozhilov, B. V. "Nonstationary Combusion of Solid Rocket Fuels," Nauka, Moscow, 1973(Translation AFSC FTD-MT-24-317-74).