1. Environment Canada. 1996. Ecological risk assessments of priority substances under the Canadian Environmental Protection Act. Resource Document. Ottawa, ON.
2. Proposed guidelines for ecological risk assessment;U.S. Environmental Protection Agency.;Fed Reg,1996
3. American Society for Testing and Materials. 1993. Standard guide for conducting a terrestrial soil-core microcosm test. E 1197-87. In Annual Book of ASTM Standards. Philadelphia, PA, pp 902-914.
4. Reactions of mycorrhizal fungi and mycorrhiza formation to pesticides;Trappe;Ann Rev Phytopathol,1984