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Journal of the Bulgarian Geographical Society 45: 99-106
doi: 10.3897/jbgs.e78975
Received: 06 Oct 2021 | Approved: 23 Dec 2021 | Published: 29 Dec 2021
This article is part of:
Journal of the Bulgarian Geographical Society 45: Natural heritage, ecosystem services and tourism
Authors
   
   
Lidiya Semerdzhieva - Corresponding author
Sofia University "St. Kliment Ohridski", Sofia, Bulgaria
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Bilyana Borisova
Sofia University "St. Kliment Ohridski", Sofia, Bulgaria
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Academic editor
Stoyan Nedkov
National Institute of Geophysics, Geodesy and Geography - Bulgarian Academy of Sciences, Sofia, Bulgaria
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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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