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![](./images/clear.gif) 1.- A laser-induced fluorescence spectroscopic study of organic matter in a Brazilian Oxisol under different tillage systems
Elsevier; Amsterdam; NLD; Netherlands, 2007
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![](./images/clear.gif) 2.- CHARACTERIZATION OF HUMIC ACIDS FROM A BRAZILIAN OXISOL UNDER DIFFERENT TILLAGE SYSTEMS BY EPR, (SUPER 13) C NMR, FTIR AND FLUORESCENCE SPECTROSCOPY
ELSEVIER; AMSTERDAM; NLD; NETHERLANDS, 2004
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![](./images/clear.gif) 3.- Soil microbial biomass and organic matter fractions during transition from conventional to organic farming systems
Elsevier; Amsterdam; NLD; Netherlands, 2012
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