@book{
  internationaliaea,
  title={Nuclear Power Reactors in the World 
September 1981 Edition},
  series={Reference Data Series},
  number={2},
  year={},
  url={https://www.iaea.org/publications/320/nuclear-power-reactors-in-the-world-september-1981-edition},
  publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
  address={Vienna}
}