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