Ralf-Thomas Schmitt

Department of Mineralogy, Petrology and Economic Geology, Sofia University St. Kl. Ohridski, 1504 Sofia, Bulgaria
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Geographical Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Department of Landscape Ecology and Environmental Protection, Sofia University St. Kl. Ohridski, 1504 Sofia, Bulgaria
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Insit. of Mineralogy, Museum of Natural History, Humboldt-University of Berlin, Invalidenstrasse 43, D-10099 Berlin, Germany
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Department of Mineralogy, Petrology and Economic Geology, Sofia University St. Kl. Ohridski, 1504 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Volume 39 1-2 September 2010