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Valentin Nikolov
2 articles by this author
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Contributions of Professor Ivan Vaptsarov ...
Review Article
Contributions of Professor Ivan Vaptsarov for the Bulgarian Geography
    Yulia Kroumova, Vladimir Vlaskov, Valentin Nikolov
10.3897/jbgs.2020.42.10
 04-05-2020
 Unique: 1656 | Total: 2376
 71-80
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Vladimir Popov – Life and Creativity
Review Article
Vladimir Popov – Life and Creativity
Valentin Nikolov
10.3897/jbgs.2020.42.6
 04-05-2020
 Unique: 1435 | Total: 2109
 43-51
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