@book{ international2021iaea, title={Certification Report on Value Assignment for the d2H and d18O Stable Isotopic Composition in the Water Reference Material GRESP (Greenland Summit Precipitation)}, series={Analytical Quality in Nuclear Applications Series}, number={63}, year={2021}, url={https://www.iaea.org/publications/14752/certification-report-on-value-assignment-for-the-d2h-and-d18o-stable-isotopic-composition-in-the-water-reference-material-gresp-greenland-summit-precipitation}, publisher={INTERNATIONAL ATOMIC ENERGY AGENCY}, address={Vienna} }