By El Afifi E.   Khalifa S.   Aly H.   in Journal of Radioanalytical and Nuclear Chemistry

ISSN:0236-5731|260|1|221-224

Springer Publishing Company ‎(2004)‎

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By Afifi E.   Attallah M.   Hilal M.   Reefy S.   in Radiochemistry

ISSN:1066-3622|52|4|441-445

MAIK Nauka/Interperiodica‎(2010)‎

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