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Grzegorz B. Durło
University of Agriculture in Krakow, Faculty of Forestry, Department of Forest Protection, Entomology and Forest Climatology, al. 29 Listopada 46, 31-425 Kraków, Poland, phone: +48126625142
Stanisław Małek
University of Agriculture in Krakow, Faculty of Forestry, Department of Forest Ecology, al. 29 Listopada 46, 31-425 Kraków, Poland
Jarosław Socha
University of Agriculture in Krakow, Faculty of Forestry, Department of Forest Dendrometry, al. 29 Listopada 46, 31-425 Kraków, Poland