@book{
  international1994iaea,
  title={Energy and Economic Tables 1950-1991},
  series={TECDOC Series},
  number={735},
  year={1994},
  url={https://www.iaea.org/publications/997/energy-and-economic-tables-1950-1991},
  publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
  address={Vienna}
}