1. Space Biospheres;Allen,1986
2. Biosphere 2: The Human Experiment;Allen,1991
3. Biosphere 2 description, purpose, and conceptual design;Allen;Space Biospheres Ventures,1992
4. Marks’ Standard Handbook for Mechanical Engineers,1987
5. Gas exchange in NASA’s Biomass Production Chamber;Corey;Bioscience,1992