@book{
  international1981iaea,
  title={IAEA Safeguards: An Introduction},
  series={Safeguards Information Series},
  number={3},
  year={1981},
  isbn={92-0-179081-3},
  url={https://www.iaea.org/publications/1067/iaea-safeguards-an-introduction},
  publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
  address={Vienna}
}