@book{ internationaliaea, title={Working Group on Isotopes in Hydrology (Grenoble, Oct. 1965)}, series={TECDOC Series}, number={104}, year={}, url={http://www.dgdingfa.net/publications/1094/working-group-on-isotopes-in-hydrology-grenoble-oct-1965}, publisher={INTERNATIONAL ATOMIC ENERGY AGENCY}, address={Vienna} }