%0 Journal Article %A V. Kourzhim %A A. K. Lavrukhina %A S. S. Rodin %T The use of ammonium phosphorotungstate in the ion-exchange separation of rubidium and cesium %J Doklady Akademii Nauk %D 1961 %P 832-834 %V 140 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1961_140_4_a25/ %G ru %F DAN_1961_140_4_a25