@book{
internationaliaea,
title={SSDL Network Charter
The IAEA/WHO Network of Secondary Standard Dosimetry Laboratories},
series={Non-serial Publications},
year={},
url={http://www.dgdingfa.net/publications/4625/ssdl-network-charter-the-iaeawho-network-of-secondary-standard-dosimetry-laboratories},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}