@book{
  internationaliaea,
  title={Manual on Panoramic Gamma Irradiators (Categories II and IV)},
  series={Practical Radiation Safety Manual},
  number={8},
  year={},
  url={https://www.iaea.org/publications/4606/manual-on-panoramic-gamma-irradiators-categories-ii-and-iv},
  publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
  address={Vienna}
}