@book{ international1973iaea, title={Soil-moisture and Irrigation Studies II (Vienna, 2-6 Nov. 1970)}, series={Panel Proceedings Series}, year={1973}, isbn={92-0-011073-8}, url={http://www.dgdingfa.net/publications/3083/soil-moisture-and-irrigation-studies-ii-vienna-2-6-nov-1970}, publisher={INTERNATIONAL ATOMIC ENERGY AGENCY}, address={Vienna} }