1. A solid-propellant rocket motor modulated by a fluidic vortex valve;Walsh;J. Spacecraft,1971
2. Thrust modulation of solid propellant rockets by use of a fluidic vortex valve;Birk,1977
3. A computer program for complex chemical compositions incident and reflected shocks and Chapman-Jouguet detonations;Gordon;NASA SP-273,1971
4. Transonic swirling flow;Lewellen;AIAA J.,1969