1. Development of a Standardized Laboratory Method for Assessing the Toxicity of Chemical Substances to Earthworms;Edwards;Commission of the European Communities. Doc EUR 8714 EN,1983
2. Protocols for Short Term Toxicity Screening of Hazardous Waste Sites;Greene;US EPA, EPA 600/3-88-029,1989
3. Trimmed Spearman-Karber method for estimating median lethal concentrations in toxicity bioassays;Hamilton;Environmental Science and Technology,1977
4. (Draft) Soil Quality — Effects of Pollutants on Earthworms (Eisenia fetida). Part 1: Method for the Determination of Acute Toxicity Using Artificial Soil Substrate;ISO,1991
5. (Draft) Soil Quality — Effects of Pollutants on Earthworms (Eisenia fetida). Part 2: Soil Determination of the Effect of Chemical Substances on the Reproduction of Earthworms;ISO,1991