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Journal of the Bulgarian Geographical Society 52: 137-156
doi: 10.3897/jbgs.e149029
Received: 07 Feb 2025 | Approved: 20 May 2025 | Published: 19 Jun 2025
This article is part of:
Journal of the Bulgarian Geographical Society 52
Authors
   
   
   
Nikolai Dobrev - Corresponding author
Geological Institute - Bulgarian Academy of Sciences, Sofia, Bulgaria
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Plamen Ivanov
Geological Institute - Bulgarian Academy of Sciences, Sofia, Bulgaria
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Konstantin Kostov
Geological Institute - Bulgarian Academy of Sciences, Sofia, Bulgaria
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Emil Oynakov
National Institute of Geophysics, Geodesy and Geography - Bulgarian Academy of Sciences, Sofia, Bulgaria
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Nina Nikolova
Sofia University St Kliment Ohridski, Sofia, Bulgaria
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Boyko Berov
Geological Institute - Bulgarian Academy of Sciences, Sofia, Bulgaria
http://www.geology.bas.bg/
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Orlin Dimitrov
Institute of Oceanology - Bulgarian Academy of Sciences, Varna, Bulgaria
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Elena Koleva-Rekalova
Geological Institute - Bulgarian Academy of Sciences, Sofia, Bulgaria
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Miroslav Ivanov Krastanov
Geological Institute - Bulgarian Academy of Sciences, Sofia, Bulgaria
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Rosen Nankin
Geological Institute - Bulgarian Academy of Sciences, Sofia, Bulgaria
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Academic editor
Ivica Milevski
Ss. Cyril and Methodius University, Faculty of Natural Sciences and Mathematics, Skopje, North Macedonia,
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Author contributions

Data curation  ND, NN, EO

Formal analysis  ND, KK, OD, NN, EO

Funding acquisition  BB, ND

Investigation  ND, KK, EKR, MK, RN

Methodology  ND, KK

Validation  PI, OD

Visualization  PI, ND, KK

Writing – original draft  ND, BB, NN, EKR

Writing – review & editing  PI, BB, NN


Conflict of interest
The authors have declared that no competing interests exist.
Supporting agencies
Ministry of Culture of Bulgaria, Project "National Geoinformation Center (NGIC)", National Scientific Program "Environmental Protection and Reduction of the Risks of Adverse Events and Natural Disasters"
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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