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1.- GEOECOLOGICAL CASE STUDIES IN SELECTED LATIN-AMERICAN ECOSYSTEMS SCHWEIZERBART; HANOVER; DEU; FEDERAL REPUBLIC OF GERMANY, 2000 GEOSCIENTIFIC COOPERATION WITH LATIN AMERICA Ver registro
2.- ORGANIC MATTER STABILIZATION IN A XANTHIC FERRALSOL OF THE CENTRAL AMAZON AS AFFECTED BY SINGLE TREES; CHEMICAL CHARACTERIZATION OF DENSITY, AGGREGATE, AND PARTICLE SIZE FRACTIONS ELSEVIER; AMSTERDAM; NLD; NETHERLANDS, 2001 Ver registro
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