@book{
      international1981iaea,
      title={Tritium in Some Typical Ecosystems},
      author={ },
      series={entity},
      number={207 },
      year={1981},
      isbn={92-0-125181-5 },
      url={/publications/1308/tritium-in-some-typical-ecosystems },
      publisher={INTERNATIONAL ATOMIC ENERGY AGENCY },
      address={Vienna}
    }