Levels of 226Ra in some paddy soils in the Mekong Delta region (Vietnam): current status and long-term assessment
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2012 ◽
Vol 11
(8)
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pp. 1445-1454
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2016 ◽
Vol Renewable Energy
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pp. 80
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1999 ◽
Vol 19
(3)
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pp. 139-142
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2001 ◽
Vol 356
(1409)
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pp. 759-765
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