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![](./images/clear.gif) 1.- CARBON-13 VARIATION WITH DEPTH IN SOILS OF BRAZIL AND CLIMATE CHANGE DURING THE QUATERNARY
SPRINGER; BERLIN - SECAUCUS; DEU; FEDERAL REPUBLIC OF GERMANY, 1996
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![](./images/clear.gif) 2.- NATURAL RADIOCARBON MEASUREMENTS IN BRAZILIAN SOILS DEVELOPED ON BASIC ROCKS
UNIVERSITY OF ARIZONA, DEPARTMENT OF GEOSCIENCES; TUCSON, AZ; USA; UNITED STATES, 1996
C-14 AND SOIL DYNAMICS; SPECIAL SECTION
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