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  1. By: Georgiev, Georgi - Georgieva, Margarita - Belilov, Sevdalin - Mirchev, Plamen - Deliyanchev, Stanko - Mladenov, Velizar - Kropov, Kadir - Haydarova, Sirma
    Type: Article
    In: Silva Balcanica
    Volume: 23
    Issue: 2
    Date: 2022-12-20
    Page Range: 27--34
    Publication Info: Sofia, Bulgaria Forest Research Institute - Bulgarian Academy of Sciences (FRI-BAS) [2001]-
    Subjects: Bulgaria  Ips typographus  NDVI  satellite images  spruce forests  Western Rhodopes  windthrow damages
  2. By: Trueman, Mandy - Standish, Rachel - Orellana, Daniel - Cabrera, Wilson
    Type: Article
    In: NeoBiota : advancing research on alien species and biological invasions
    Volume: 23
    Date: 2014-9-2
    Page Range: 1--16
    Publication Info: Sophia, Bulgaria Pensoft Publishers
    Subjects: Invasion extent  invasion lag phase  invasive species  protected area  rate of spread  remote sensing data  satellite images  vegetation map