%0 Journal Article %T Determination of ultramicroquantities of Ra226 in various substances %A Pomanskii, A. %A Severnyi, S. %A Trifonova, E. %J Atomic Energy %V 27 %N 1 %P 718-720 %@ 1063-4258 %D 2005-05-18 %I Kluwer Academic Publishers-Plenum Publishers %~ DeepDyve