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![](./images/clear.gif) 1.- 200 YEARS OF MINING ACTIVITIES AT LA PAZ/SAN LUIS POTOSI/MEXICO; CONSEQUENCES FOR ENVIRONMENT AND GEOCHEMICAL EXPLORATION
ELSEVIER; AMSTERDAM-NEW YORK; III; INTERNATIONAL, 1997
GEOCHEMICAL EXPLORATION 1995; II
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![](./images/clear.gif) 2.- TRAFFIC-RELATED PLATINUM GROUP ELEMENTS (PGE) IN SOILS FROM MEXICO CITY
ELSEVIER; AMSTERDAM-NEW YORK; III; INTERNATIONAL, 2001
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![](./images/clear.gif) 3.- UPTAKE OF TRACE ELEMENTS BY NUTRIENT PLANTS FROM SOILS CONTAMINATED BY MINING ACTIVITIES IN SW-GERMANY AND NORTH-CENTRAL MEXICO
U. S. GEOLOGICAL SURVEY; RESTON, VA; USA; UNITED STATES, 1997
4TH INTERNATIONAL SYMPOSIUM ON ENVIRONMENTAL GEOCHEMISTRY; PROCEEDINGS
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