1. The biosphere is going deep;Fyfe;Science,1996
2. Biofilms in unsaturated environments;Holden,2001
3. Vadose zone microbiology;Kieft,2001
4. Biodegradation of organic compounds in the vadose zone and aquifer sediments;Konopka;Applied and Environmental Microbiology,1991
5. Epistemology of environmental microbiology;Madsen;Environmental Science & Technology,1998