@book{
international2009iaea,
title={ALMERA Proficiency Test on the Determination of Po-210 in Water},
series={Analytical Quality in Nuclear Applications Series},
number={4},
year={2009},
url={http://www.dgdingfa.net/publications/8052/almera-proficiency-test-on-the-determination-of-po-210-in-water},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}