@book{
international1990iaea,
title={Recommendations for the Safe Use and Regulation of Radiation Sources in Industry, Medicine, Research and Teaching},
series={Safety Series},
number={102},
year={1990},
isbn={92-0-123390-6},
url={http://www.dgdingfa.net/publications/3678/recommendations-for-the-safe-use-and-regulation-of-radiation-sources-in-industry-medicine-research-and-teaching},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}