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1 (349) | Bulgarian Academy of Sciences * | BGR | ![]() | |
2 (504) | Institute of Biodiversity and Ecosystems Research Bulgarian Academy of Sciences | BGR | ![]() | |
3 (593) | Trakia University | BGR | ![]() | |
4 (632) | Sofia University | BGR | ![]() | |
5 (635) | University of Plovdiv Paisii Hilendarski | BGR | ![]() |