1. “Sintering Bricks on the Moon,” in Engineering, Construction, and Operations in Space IV;Allen,1994
2. “Lunar Oxygen Production - A Maturing Technology,” in Engineering, Construction, and Operations in Space IV;Allen,1994
3. Experimental reduction of lunar mare soil and volcanic glass;Allen;J. Geophys. Res.,1994
4. Oxygen extraction from lunar soils and pyroclastic glass;Allen;J. Geophys. Res. E Planets,1996
5. Demonstration of oxygen production on the moon and Mars;Allen,1997