1. Report of the 90-Day Study on Human Exploration Initiative;Cohen,1989
2. Biosphere 2: Technical Overview of a Manned Closed Ecological System;Dempster,1989
3. Soil bed scrubbing of Fugitive Gas Releases;Bohn;J. Environ. Sci. Health,1986
4. Soil Beds for the Control of Sewage Odors;Carlson;J. WPCF,1966
5. Soil Adsorption of Air Pollutants;Bohn;J. Envir. Quality,1972