@book{
international2006iaea,
title={Monitoring for Radioactive Material in International Mail Transported by Public Postal Operators},
series={Technical Guidance},
number={3},
year={2006},
isbn={92-0-100406-0},
url={http://www.dgdingfa.net/publications/7402/monitoring-for-radioactive-material-in-international-mail-transported-by-public-postal-operators},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}