References
- Bertilsson , G. 1977 . Urlakning av kväve från odlingsmarken . Supra-Referensen Nr , 3 April 1977
- Bertilsson , G. 1978 . “ Nitrogen loss by leaching from agricultural fields, related to microenvironmental factors ” . In Environmental Biogeochemistry and Geomicrobiology , Edited by: Krumbein , W. vol. 2 , Ann. Arbor Science Publ. . Proc. Third International Symposium on Environmental Biogeochemistry 1978