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![](./images/clear.gif) 1.- Modeling non-steady state radioisotope transport in the vadose zone; a case study using uranium isotopes at Pena Blanca, Mexico
Elsevier; New York, NY; III; International, 2009
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![](./images/clear.gif) 2.- The times scale of andesite differentiation at Arenal Volcano, Costa Rica (1968-2003), indicated by U-Th-Ra disequilibria
American Geophysical Union; Washington, DC; USA; United States, 2004
AGU 2004 fall meeting
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