1. Alternative onsite sewage systems ability to reduce nitrogen from domestic sources;Atkins,2001
2. Beggs, R.A., 2005. Nutrient Removal in Subsurface Drip Application of Onsite Wastewater System Effluent, Ph.D. Dissertation, University of California, Davis, CA.
3. Bohrer, R., 2000. Drip Distribution Soil Performance and Operations in a Northern Climate, M.S. Thesis, University of Wisconsin, Madison, WI.
4. Fate of wastewater constituents in soil and groundwater: nitrogen and phosphorous, Chapter 12;Broadbent,1986
5. Analysis of soil wetting and solute transport in sub-surface trickle irrigation;Cote;Irrigation Science,2003