Petru Enciu

Institute of Geography, Romanian Academy, Bucharest Romania
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Institute of Geography, Romanian Academy, Bucharest Romania

Volume 39 1-2 September 2010

Institute of Geography-Romanian Academy, Bucharest, Romania

Volume 39 1-2 September 2010

Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Survey of Romania, 78344-Bucurest-32, Romania

Volume 30 3-4 February 2001