The use of microbial bioassays and activity measurements for the evaluation of metal-contaminated soil quality
Frey, B., Zimmermann, S., Stemmer, M., Luster, J., Nowack, B., & Widmer, F. (2003). The use of microbial bioassays and activity measurements for the evaluation of metal-contaminated soil quality. In Proceedings of the 7th International Conference on the Biogeochemistry of Trace Elements (pp. 176-177).