@book{ international2020iaea, title={Radiation Safety in the Use of Nuclear Gauges}, series={Specific Safety Guides}, number={SSG-58}, year={2020}, isbn={978-92-0-106019-8}, url={https://www.iaea.org/publications/13468/radiation-safety-in-the-use-of-nuclear-gauges}, publisher={INTERNATIONAL ATOMIC ENERGY AGENCY}, address={Vienna} }