@book{
  international1976iaea,
  title={Maintenance of Nuclear Medicine Instruments in Developing Countries},
  series={TECDOC Series},
  number={184},
  year={1976},
  url={https://www.iaea.org/publications/430/maintenance-of-nuclear-medicine-instruments-in-developing-countries},
  publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
  address={Vienna}
}