@book{
internationaliaea,
title={Use of Isotope and Radiation Methods in Soil and Water Management and Crop Nutrition},
series={Non-serial Publications},
year={},
url={http://www.dgdingfa.net/publications/7051/use-of-isotope-and-radiation-methods-in-soil-and-water-management-and-crop-nutrition},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}