Nikolay Bonev

Department of Geology-Paleontology-Fossil Fuels, Sofia University “St.Kliment Ohridski”, BG-1504, Sofia, Bulgaria
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Department of Mineralogy and Petrology, Faculty of Geology and Geoenvironment, National and Kapodistrian University of Athens, Panepistimioupolis 15784, Athens, Greece
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Department of Geology-Paleontology-Fossil Fuels, Sofia University “St.Kliment Ohridski”, BG-1504, Sofia, Bulgaria

Volume 39 1-2 September 2010

Section des Sciences de la Terre et de l’Environnement, University of Geneva, Rue des Maraîchers 13, 1205 Geneva, Switzerland
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Section des Sciences de la Terre et de l’Environnement, University of Geneva, Rue des Maraîchers 13, 1205 Geneva, Switzerland
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Section des Sciences de la Terre et de l’Environnement, University of Geneva, Rue des Maraîchers 13, 1205 Geneva, Switzerland
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Geological Institute of the Bulgarian Academy of Sciences, Acad. G. Bonchev Street, 1113 Sofia, Bulgaria
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Department of Mineralogy-Petrology, University of Athens, GR-15784 Athens, Greece
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Department of Geology and Paleontology, Sofia University St Kliment Ohridski, 15 Tzar Osvoboditel Bd., 1504 Sofia Bulgaria
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Section des Sciences de la Terre et de l’Environnement, University of Geneva, Rue des Maraîchers 13, 1205 Geneva, Switzerland
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U.S. Geological Survey, Denver Federal centre, MS 963, Denver, CO 80225, U.S.A.

Volume 39 1-2 September 2010