%0 Journal Article %A M. K. Nikitin %T An investigation of ion exchange in $\mathrm{HF}$ solutions. Group separation of elements by means of ion exchange resins %J Doklady Akademii Nauk %D 1963 %P 595-597 %V 148 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1963_148_3_a27/ %G ru %F DAN_1963_148_3_a27