1. et al, Biofiltration for Air Pollution Control, Lewis Publishers, Boca Raton, FL, 1999.
2. Control of volatile organic compound emissions using a compost biofilter
3. Ninth Annual Household Hazardous Waste Management Conference, Austin, TX, International City/County Management Association, 1994.
4. and , A&WMA, 89th Annual Meeting, Nashville, TN, 1996.