Ecological Engineering: Journal of Ecotechnology.
Editor-in-chief William J. Mitsch. Elsevier. 4/yr. DFL 361, $195.
Article PDF
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Usher, M. Science in action. Nature 365, 586 (1993). https://doi.org/10.1038/365586b0
Issue Date:
DOI: https://doi.org/10.1038/365586b0