Founded 1934 by Prof. Dr Stefan Bončev
A Geo-Sciences Journal of the Geological Institute “Strashimir Dimitrov”, Bulgarian Academy of Sciences
Official Journal of the Carpathian-Balkan Geological Association

Boris Valchev

University of Mining and Geology “St. Ivan Rilski”, 1700 Sofia, e-mail: b_valchev@mgu.bg

Boris Valchev
University of Mining and Geology “St Ivan Rilski”, Department of Geology and Geoinformatics, 1 Prof. Boyan Kamenov Str., Studentski Grad, 1700 Sofia, Bulgaria
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Hristo Dimitrov
University of Mining and Geology “St Ivan Rilski”, Department of Geology and Geoinformatics, 1 Prof. Boyan Kamenov Str., Studentski Grad, 1700 Sofia, Bulgaria
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Dimitar Sachkov
University of Mining and Geology “St Ivan Rilski”, Department of Geology and Geoinformatics, 1 Prof. Boyan Kamenov Str., Studentski Grad, 1700 Sofia, Bulgaria
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Sava Juranov
Sofia University “St Kliment Ohridski”, Department of Geology, Palaeontology and Fossil Fuels, 15 Tsar Osvoboditel Blvd, 1504 Sofia, Bulgaria

A new concept for the Paleogene lithostratigraphy in the onshore part of the Dolna Kamchiya Basin (eastern Bulgaria) on the basis of 3D modeling

Volume 49 2 August 2020

Boris Valchev
University of Mining and Geology “St Ivan Rilski”, Department of Geology and Geoinformatics, 1 Prof. Boyan Kamenov Str., Studentski Grad, 1700 Sofia, Bulgaria
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Dimitar Sachkov
University of Mining and Geology “St Ivan Rilski”, Department of Geology and Geoinformatics, 1 Prof. Boyan Kamenov Str., Studentski Grad, 1700 Sofia, Bulgaria
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Sava Juranov
Sofia University “St Kliment Ohridski”, Department of Geology, Palaeontology and Fossil Fuels, 15 Tsar Osvoboditel Blvd, 1504 Sofia, Bulgaria

3D lithostratigraphic model of the Paleogene of the onshore part of the Moesian Platform (Northeast Bulgaria)

Volume 47 1 May 2018

Ekaterina Dimitrova
Geological Institute of the Bulgarian Academy of Sciences, 1113 Sofia
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Boris Valchev
University of Mining and Geology “St. Ivan Rilski”, Studentski Grad, 1700 Sofia

Attempt for Upper Cretaceous planktic foraminiferal zonation of the Srednogorie and Eastern Balkan Zones (Bulgaria)

Volume 36 1-2 June 2007

Boris Valchev
University of Mining and Geology “St. Ivan Rilski”, Studentski Grad, 1700 Sofia

Benthic foraminiferal morphogroups from the Paleocene of the coastal part of East Stara Planina Mts.

Volume 35 3-4 December 2006

Boris Valchev
Ulliversity of Mining and Geology, 1700 Sofia

Biostratigraphy of the Paleocene of the coastal part of East Stara Planina based on small benthic Foraminifera

Volume 33 1-2 June 2003

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