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1.- (super 13) C NMR and FTIR spectroscopy characterization of humic acids in Spodosols under tropical rain forest in southeastern Brazil
Elsevier; Amsterdam; NLD; Netherlands, 2008
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2.- 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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3.- 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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4.- Effect of residual vanadyl on the spectroscopic analysis of humic acids
Elsevier;; III; International, 2006
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