1. Insecticidal activity and biodegradation of the toxin from bacillus thuringiensis subsp. kurstaki bound to humic acids from soil
2. Biodegradation and insecticidal activity of the toxin from Bacillus thuringiensis subsp. kurstaki bound on complexes of montmorillonite–humic acids–Al hydroxypolymers
3. Environmental Protection Agency (EPA ) (2000 ) Issues pertaining to the Bt plant pesticides risk and benefit assessments. Environmental assessment: http://www.epa.gov/scipoly/sap/2000/october/brad3_enviroassessment.pdf, IIC17-IIC30.
4. Environmental Protection Agency (EPA ) (2002 ) A set of scientific issues being considered by the Environmental Protection Agency regarding: Corn Rootworm plant-incorporated protectant non-target insect and insect resistance management issues. FIFRA Scientific Advisory Panel Meeting, Sheraton Crystal City Hotel, Arlington, Virginia, August 27-29, http://www.epa.gov/scipoly/sap, pp. 26 -31 .