@book{
international1998iaea,
title={The Use of Nuclear Techniques in the Management of Nitrogen Fixation by Trees to Enhance Fertility of Fragile Tropical Soils - Results of a Co-ordination Research Project},
series={TECDOC Series},
number={1053},
year={1998},
url={http://www.dgdingfa.net/publications/5350/the-use-of-nuclear-techniques-in-the-management-of-nitrogen-fixation-by-trees-to-enhance-fertility-of-fragile-tropical-soils-results-of-a-co-ordination-research-project},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}