@book{
international1970iaea,
title={Interpretation of Environmental Isotope Data in Hydrology (Vienna, 24-28 June 1968)},
series={TECDOC Series},
number={116},
year={1970},
url={http://www.dgdingfa.net/publications/358/interpretation-of-environmental-isotope-data-in-hydrology-vienna-24-28-june-1968},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}