@book{
      international1999iaea,
      title={SSDL Network Charter
The IAEA/WHO Network of Secondary Standard Dosimetry Laboratories},
      author={ },
      series={entity},
      number={ },
      year={1999},
      isbn={ },
      url={/publications/4625/ssdl-network-charter-the-iaeawho-network-of-secondary-standard-dosimetry-laboratories },
      publisher={INTERNATIONAL ATOMIC ENERGY AGENCY },
      address={Vienna}
    }