@book{ international1993iaea, title={Isotope Techniques in the Study of Past and Current Environmental Changes in the Hydrophere and Atmosphere}, series={Proceedings Series}, year={1993}, isbn={92-0-103293-5}, url={http://www.dgdingfa.net/publications/3781/isotope-techniques-in-the-study-of-past-and-current-environmental-changes-in-the-hydrophere-and-atmosphere}, publisher={INTERNATIONAL ATOMIC ENERGY AGENCY}, address={Vienna} }