%0 Journal Article %T Determination of uranium and thorium in phosphate rocks by a combined ion-exchange — Spectrophotometric method %A Kiriyama, Tetsuya %A Kuroda, Rokuro %J Microchimica Acta %V 87 %N 6 %P 369-375 %@ 0026-3672 %D 2005-02-04 %I Springer-Verlag %~ DeepDyve