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Journal of the Bulgarian Geographical Society 45: 41-59
doi: 10.3897/jbgs.e72500
Received: 02 Aug 2021 | Approved: 23 Oct 2021 | Published: 29 Dec 2021
This article is part of:
Journal of the Bulgarian Geographical Society 45: Natural heritage, ecosystem services and tourism
Authors
   
Mladen Silvestriev
Sofia University "St.Kliment Ohridski", Sofia, Bulgaria
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Bilyana Borisova - Corresponding author
Sofia University "St.Kliment Ohridski", Sofia, Bulgaria
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Radenka Mitova
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.
Supporting agencies
project BG05M2OP001-1.001-0001 Establishment and Development of “Heritage BG” Centre of Excellence (Operational Program “Science and Education for Intelligent Growth”
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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