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

Iliana Boncheva

Polina Andreeva
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Iliana Boncheva
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Valeri Sachanski
University of Mining and Geology, Studentski Grad, Prof. Boyan Kamenov Str., 1700 Sofia; Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Microfacies, sea-level fluctuations and conodont biostratigraphy of Frasnian–Famennian carbonate sequences from the Preslavtsi-2 well (the Moesian Platform, NE Bulgaria)

Volume 53 2 August 2024

Iliana Boncheva
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev St., Bl. 24, 1113 Sofia, Bulgaria
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Valeri Sachanski
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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Ralph Thomas Becker
Westphälische Wilhelms-Universität, Institut für Geologie und Paläontologie, Corrensstr. 24, D-48149 Münster, Germany

Sedimentary and faunal evidence for the Late Devonian Kellwasser and Annulata events in the Balkan Terrane (Bulgaria)

Volume 44 1-3 December 2015

Polina Andreeva
Department of Paleontology, Stratigraphy and Sedimentology, Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Iliana Boncheva
Department of Paleontology, Stratigraphy and Sedimentology, Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Iskra Lakova
Department of Paleontology, Stratigraphy and Sedimentology, Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Slavcho Yanev
Department of Paleontology, Stratigraphy and Sedimentology, Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Daria Ivanova
Department of Paleontology, Stratigraphy and Sedimentology, Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Devonian stratigraphy and Depositional environment of the Moesian Platform, NE Bulgaria

Volume 39 1-2 September 2010

Iliana Boncheva
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Ivan Zagorchev
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Emil Goranov
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

New data on the Treklyano Group (Jurassic): sections Propast and Gorna Glogovitsa (Southwest Bulgaria)

Volume 34 3-4 December 2004

Valeri Sachanski
Geological Institute, BAS, 1113 Sofia
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Iliana Boncheva
Geological Institute, BAS, 1113 Sofia

Geological events and processes dating by the rate of sedimentation in the area of Cherna Gora Height

Volume 32 2-4 December 2002

Slavcho Yanev
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Iliana Boncheva
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Contribution to the Paleozoic evolution of the recent Moesian platform

Volume 25 5-6 December 1995

Iliana Boncheva
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Taxonomic al notes on the genus Pandorinellina Muller & Muler, 1957 and the steinhornensis group

Volume 25 5-6 December 1995

Slavcho Yanev
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Tzanko Tzankov
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Iliana Boncheva
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Lithostratigraphy and Late Alpine Structure of the Palaeozoic Terrains in the Šipka Part of Stara Planina Mountains

Volume 25 2 April 1995

Iliana Boncheva
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Slavcho Yanev
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

New data on the Paleozoic flysch of the Sofijska Stara-Planina Mountain

Volume 23 5 October 1993

Iliana Boncheva
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Emsian representatives of the conodont genus Polygnatus Hinde, 1879 from Southwest Bulgaria

Volume 22 2 April 1992

Iliana Boncheva
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Conodont biostratigraphy of the Lower Devonian from Southwest Bulgaria

Volume 21 4 August 1991

Ivan Zagorchev
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Iliana Boncheva
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Indications of Devonian basic volcanism in Southwest Bulgaria

Volume 18 4 August 1988

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Vol. 21 (5)/October 1991 - p. 99
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Bulgarian Academy of Sciences, Central laboratory of Mineralogy and Crystallography, Bulgaria
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Sofia University, Department of Mineralogy, Petrology, Ores and Minerals, Bulgaria
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Sofia University “St Kliment Ohridski”, 15 Tsar Osvoboditel Blvd, 1504 Sofia, Bulgaria
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