@book{
  international1967iaea,
  title={Assessment of Airborne Radioactivity (Vienna, 3-7 July 1967)},
  series={Proceedings Series},
  year={1967},
  isbn={92-0-020367-1},
  url={https://www.iaea.org/publications/2116/assessment-of-airborne-radioactivity-vienna-3-7-july-1967},
  publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
  address={Vienna}
}