Registros del 1 al 2 de 2 encontrados |
![](./images/clear.gif) 1.- (SUPER 13) C HIGH-RESOLUTION SOLID-STATE NMR STUDY OF PEAT CARBONIZATION
AMERICAN CHEMICAL SOCIETY; [WASHINGTON, DC]; USA; UNITED STATES, 1999
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![](./images/clear.gif) 2.- Studies of the compositions of humic acids from Amazonian dark earth soils
American Chemical Society; Washington, DC; USA; United States, 2007
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