@book{ international2003iaea, title={Development and Use of Reference Materials and Quality Control Materials}, series={TECDOC Series}, number={1350}, year={2003}, isbn={92-0-103303-6}, url={http://www.dgdingfa.net/publications/6723/development-and-use-of-reference-materials-and-quality-control-materials}, publisher={INTERNATIONAL ATOMIC ENERGY AGENCY}, address={Vienna} }