TY - JOUR AU - Svetlana Nour AU - A El-sharkawy AU - W Burnett AU - E Horwitz C2 - Applied Radiation and Isotopes DA - 2004-01-01 LA - en M1 - 61 PB - Applied Radiation and Isotopes PY - 2004 TI - Radium-228 Determination of Natural Waters Via Concentration On Manganise Dioxide And Separation Using Diphonix Ion Exchange Resin ER -