1. University of East Sarajevo, Faculty of Agriculture , Department for Forestry , Vuka Karadžića 30, 71123 East Sarajevo , Bosnia and Herzegovina
2. University of Novi Sad, Faculty of Sciences , Department of Biology and Ecology , Trg Dositeja Obradovića 2, 21000 Novi Sad , Republic of Serbia
3. University of Novi Sad , Institute of Lowland Forestry and Environment , Antona Čehova 13d, 21000 Novi Sad , Republic of Serbia
4. University of Novi Sad, Faculty of Agriculture , Department of Fruit Growing, Viticulture, Horticulture and Landscape Architecture , Trg Dositeja Obradovića 8, 21000 Novi Sad , Republic of Serbia
5. Institute for Biological Research “Siniša Stanković” - National Institute of Republic of Serbia , University of Belgrade , Bulevar despota Stefana 142, 11000 Belgrade , Republic of Serbia
6. Croatian Forest Research Institute , Cvjetno naselje 41, 10450 Jastrebarsko , Croatia