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  1. By: Belilov, Sevdalin - Georgiev, Georgi - Mirchev, Plamen - Georgieva, Margarita
    Type: Article
    In: Silva Balcanica
    Volume: 22
    Issue: 2
    Date: 2021-10-20
    Page Range: 69--72
    Publication Info: Sofia, Bulgaria Forest Research Institute - Bulgarian Academy of Sciences (FRI-BAS) [2001]-
    Subjects: Bark beetles  Bulgaria  Macedonian pine  Pirin Mts.