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Journal of the Bulgarian Geographical Society 45: 67-80
doi: 10.3897/jbgs.e78709
Received: 30 Sep 2021 | Approved: 08 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
   
   
   
   
Mariyana Nikolova - Corresponding author
National Institute of Geophysics, Geodesy and Geography - Bulgarian Academy of Sciences, Sofia, Bulgaria
http://niggg.bas.bg
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Peter Nojarov
National Institute of Geophysics, Geodesy and Geography - Bulgarian Academy of Sciences, Sofia, Bulgaria
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Stoyan Nedkov
National Institute of Geophysics, Geodesy and Geography - Bulgarian Academy of Sciences, Sofia, Bulgaria
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Academic editor
Stelian Dimitrov
Sofia University "St. Kliment Ohridski", Sofia, Bulgaria
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Author contributions

MN: Abstract, introduction, discussion and conclussions; PN: Data and methods, Results; SN: Maps, mesurements


Conflict of interest
The authors have declared that no competing interests exist.
Supporting agencies
Creation and development of “Heritage BG” Centre of Excellence
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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