Author

Profile picture
Aleksandra Ravnachka                
National Institute of Geophysics, Geodesy and Geography - Bulgarian Academy of Sciences
Sofia, Bulgaria
3 articles by this author
Sort by:
Clustering ...
Research Article
Clustering analysis of the light industry in Bulgaria
    Aleksandra Ravnachka,     Velimira Stoyanova
10.3897/jbgs.e89215
 25-07-2022
 Unique: 2745 | Total: 5533  | Access Period:
 Reprint: € 6,00
 31-42
HTML
XML
PDF
Cultural ecosystem services for development of nature-based tourism in Bulgaria
Research Article
Cultural ecosystem services for development of nature-based tourism in Bulgaria
    Mariyana Nikolova,     Velimira Stoyanova,     Desislava Varadzhakova,     Aleksandra Ravnachka
Part of: Natural heritage, ecosystem services and tourism
10.3897/jbgs.e78719
 29-12-2021
 Unique: 3607 | Total: 6762  | Access Period:
 Reprint: € 5,00
 81-87
HTML
XML
PDF
Professor ...
Review Article
Professor Tуanko Yordanov – Life and Creativity
    Aleksandra Ravnachka, Gergana Metodieva
10.3897/jbgs.2020.42.22
 04-05-2020
 Unique: 771 | Total: 1233  | Access Period:
 156-162
HTML
PDF

This website uses cookies in order to improve your web experience. Read our Cookies Policy

OK