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Mårtensson, A.M. Use of heterotrophic and cyanobacterial nitrogen fixation to study the impact of anthropogenic substances on soil biological processes. Bull. Environ. Contam. Toxicol. 50, 466–473 (1993). https://doi.org/10.1007/BF00197209
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DOI: https://doi.org/10.1007/BF00197209