@book{ international2012iaea, title={X Ray Fluorescence in the IAEA and its Member States Newsletter No. 21, July 2011}, series={XRF Newsletter}, year={2012}, url={http://www.dgdingfa.net/publications/8849/x-ray-fluorescence-in-the-iaea-and-its-member-states-newsletter-no-21-july-2011}, publisher={INTERNATIONAL ATOMIC ENERGY AGENCY}, address={Vienna} }
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