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![](./images/clear.gif) 1.- Groundwater protection using vulnerability maps and wellhead protection area (WHPA); a case study in Mexico
Springer for the European Water Resources Association (EWRA); Dordrecht - Boston; III; International, 2010
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![](./images/clear.gif) 2.- HERCYNIAN QUARTZ-GOLD VEINS IN THE PARCOY DISTRICT OF NORTHERN PERU
[INTERNATIONAL GEOLOGICAL CONGRESS]; [LOCATION VARIES]; VVV; INTERNATIONAL, 1996
30TH INTERNATIONAL GEOLOGICAL CONGRESS; ABSTRACTS
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