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By: Georgieva, Margarita - Georgiev, Georgi - Zhiyanski, MiglenaType: ArticleIn: Silva BalcanicaVolume: 26Series:Issue: 2Date: 2025-6-11Page Range: 5--11Publication Info: Sofia, Bulgaria Forest Research Institute - Bulgarian Academy of Sciences (FRI-BAS) [2001]-Subjects: ‘Parangalitsa’ Reserve biological factors health condition Protected forest area Rila Mountain