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GeoStudies 2: 85-106
doi: 10.3897/geostudies.2.e180731
Received: 28 Nov 2025 | Approved: 10 Dec 2025 | Published: 22 Dec 2025
This article is part of:
GeoStudies 2
Authors
   
   
   
Nadezhda Ilieva
National Institute of Geophysics, Geodesy and Geography — Bulgarian Academy of Sciences, Sofia, Bulgaria
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Kamelia Petkova - Corresponding author
Institute of Philosophy and Sociology — Bulgarian Academy of Sciences, Sofia, Bulgaria
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Academic editor
Desislava Varadzhakova
National Institute of Geophysics, Geodesy and Geography - Bulgarian Academy of Sciences, Sofia, Bulgaria
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Author contributions
Kamelia Petkova and Nadezhda Ilieva jointly designed the study, collected and analysed the data, and wrote and revised the manuscript. Both authors have approved the final version.
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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