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Journal of the Bulgarian Geographical Society 55: 43-66
doi: 10.3897/jbgs.e207005
Received: 08 Jul 2026 | Approved: 11 Aug 2026 | Published: 19 Aug 2026
This article is part of:
Journal of the Bulgarian Geographical Society 55
Authors
   
   
   
   
Leonid Todorov - Corresponding author
Sofia Univesity St. Kliment Ohridski, Sofia, Bulgaria
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Suzana Hadzhieva
Sofia Univesity St. Kliment Ohridski, Sofia, Bulgaria
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Elena Todorova
Forest Research Institute - Bulgarian Academy of Sciences, Sofia, Bulgaria
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Stelian Dimitrov
Sofia Univesity St. Kliment Ohridski, Sofia, Bulgaria
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Martin Iliev
Sofia Univesity St. Kliment Ohridski, Sofia, Bulgaria
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Ivo Ihtimanski
Sofia Univesity St. Kliment Ohridski, Sofia, Bulgaria
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Stoyan Valchev
Sofia Univesity St. Kliment Ohridski, Sofia, Bulgaria
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Petar Nikolov
Sofia Univesity St. Kliment Ohridski, Sofia, Bulgaria
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Academic editor
Ines Grigorescu
Institute of Geography, Romanian Academy, Bucharest, Romania
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Author contributions

Conceptualization: SD, LT. Data curation: LT. Formal analysis: SH, PN, II, LT, ET, SV, MI. Investigation: LT. Methodology: LT. Supervision: SD. Validation: SV, II, PN, MI. Visualization: LT. Writing - original draft: ET, LT, SH. Writing - review and editing: II, ET, PN, SV, MI, SD.


Conflict of interest
The authors have declared that no competing interests exist.
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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