@book{
  international1976iaea,
  title={Agris: Categorization and Information Retrieval Based on Ibm's Irms},
  series={TECDOC Series},
  number={183},
  year={1976},
  url={https://www.iaea.org/publications/429/agris-categorization-and-information-retrieval-based-on-ibms-irms},
  publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
  address={Vienna}
}