- Synthetic and biomass alternate fueling in aviation, R. C. Hendricks, D.M. Bushnell
- Halophytes, algae, and bacteria food and fuel feedstocks, R. C. Hendricks, D.M. Bushnell
- Atmospheric and soil carbon and halophytes, Robert C. Hendricks, Dennis M. Bushnell
- Qualitative investigation of cryogenic injected shock dissipation, R.C. Hendricks ; prepared for the Cyrogenci Engineering Conference cosponsored by the University of Alabama at Huntsville, and NASA Marshall Space Flight Center, Huntsville, Alabama, June 11-14, 1991
- Paramagnetic propellant orientation, R.C. Hendricks ; prepared for the 27th Joint Propulsion Conference sponsored by the AIAA, SAE, and ASME, Sacramento, California, June 24-26, 1991
- Alternate-fueled flight, halophytes, algae, bio-, and synthetic fuels, R.C. Hendricks
- A qualitative view of cryogenic fluid injection into high speed flows, R.C. Hendricks, J. Schlumberger, and M. Proctor ; prepared for the XVIIIth International Congress of Refrigeration, Montreal, Canada, August 10-17, 1991