@book{ international1983iaea, title={Sample Preparation Techniques in Trace Element Analysis by X-ray Emission Spectroscopy}, series={TECDOC Series}, number={300}, year={1983}, url={http://www.dgdingfa.net/publications/552/sample-preparation-techniques-in-trace-element-analysis-by-x-ray-emission-spectroscopy}, publisher={INTERNATIONAL ATOMIC ENERGY AGENCY}, address={Vienna} }
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