OUR JOURNAL

CURRENT ISSUE: VOLUME 47 (2)/November 2018

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Austrian Institute of Technology, Center for Energy, Konrad-Lorenz-Str. 24, 3430 Tulln, Austria
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Austrian Institute of Technology, Center for Energy, Konrad-Lorenz-Str. 24, 3430 Tulln, Austria
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Austrian Institute of Technology, Center for Energy, Konrad-Lorenz-Str. 24, 3430 Tulln, Austria
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev, Bl. 24, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev, Bl. 24, 1113 Sofia, Bulgaria; Institute of Geochemistry and Petrology, ETH, 8092 Zurich, Switzerland
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Institute of Geochemistry and Petrology, ETH, 8092 Zurich, Switzerland
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev, Bl. 24, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev, Bl. 24, 1113 Sofia, Bulgaria

Sofia University “St Kliment Ohridski”, 15 Tsar Osvoboditel Blvd, 1504 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Babeş-Bolyai University, RO-400084, Cluj–Napoca, Romania
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Babeş-Bolyai University, RO-400084, Cluj–Napoca, Romania

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Comenius University, Faculty of Natural Sciences, Department of Geology and Palaeontology, Mlynská dolina G–229, Ilkovičova 6, SK–84215 Bratislava, Slovak Republic
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Slovak Academy of Sciences, Institute of Earth Sciences, Dúbravská 9, P.O. Box 106840 05, Bratislava, Slovak Republic
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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BRGM, BP 6009, 45060 Orléans cédex 2, France
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., 1113 Sofia, Bulgaria
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Faculty of Geology and Geography, Department of Geology, Palaeontology and Fossil Fuels, Sofia University “St Kliment Ohridski”, 15 Tsar Osvoboditel Blvd, 1504 Sofia, Bulgaria

Institute of Oceanology, Bulgarian Academy of Sciences, P.O. Box 152, 9000 Varna, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev St., Block 24, 1113 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Faculty of Geology and Geography, Department of Geology, Palaeontology and Fossil Fuels, Sofia University “St. Kliment Ohridski”, 15 Tsar Osvoboditel Blvd, 1504 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Block 24, 1113 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev, bl. 24, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev, bl. 24, 1113 Sofia, Bulgaria
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Sofia University “St. Kliment Ohridski”, 15 Tsar Osvoboditel Blvd., 1504 Sofia, Bulgaria
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National Institute of Geophysics, Geodesy and Geography, Acad. G. Bonchev, bl. 3, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev, bl. 24, 1113 Sofia, Bulgaria

Geological Institute,Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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University of Mining and Geology, “St. Ivan Rilski”, 1700, Sofia, Bulgaria
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“Elatsite - Med” PLC, 2086 Mirkovo, Bulgaria
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Geological Institute,Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Geological Institute,Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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“Geomarin Center” OOD, 99 J. Bourchier Blvd, 1407 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

University of Mining and Geology, Department of Geology and Geo-Information, Studentski Grad,“Prof. Boyan Kamenov” St., Sofia 1700; Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev St., Bl. 24, 1113 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev St., Bl. 24, 1113 Sofia, Bulgaria
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University of Mining and Geology, Department of Geology and Geo-Information, Sofia; Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev St., Bl. 24, 1113 Sofia, Bulgaria
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Westphälische Wilhelms-Universität, Institut für Geologie und Paläontologie, Corrensstr. 24, D-48149 Münster, Germany

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Hungarian Natural History Museum, Department of Botany, 1476 Budapest, P.O. Box 222, Hungary

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev, Bl.24, 1113 Sofia; Institute of Geochemistry and Petrology, ETH-Zurich
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Institute of Mineralogy and Crystallography, Bulgarian Academy of Sciences, Acad. G. Bonchev, Bl.7, 1113 Sofia
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Institute of Geochemistry and Petrology, ETH-Zurich
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Institute of Mineralogy and Crystallography, Bulgarian Academy of Sciences, Acad. G. Bonchev, Bl.7, 1113 Sofia

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev, Bl.24, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev, Bl.24, 1113 Sofia, Bulgaria

Sofia University “St. Kliment Ohridski”, 15 Tsar Osvoboditel Blvd., 1504 Sofia
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Sofia University “St. Kliment Ohridski”, 15 Tsar Osvoboditel Blvd., 1504 Sofia

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Street, Bl. 24, 1113 Sofia; Bulgaria
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Historical Museum Etropole, 105, Ruski Boulevard, 2108 Etropole, p.o.b. 35, Bulgaria

Sofia University “St. Kliment Ohridski”, 15 Tsar Osvoboditel Blvd., 1504 Sofia

Sofia University “ St. Kliment Ohridski”, 15 Tsar Osvoboditel Blvd., 1504 Sofia

FGU NPP "Geologorazvedka", Saint-Petersburg, Russia
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Geological Institute, Bulgarian Academy of Sciences, Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Sofia, Bulgaria
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Saint-Petersburg State University, Saint Petersburg, Russia

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