Authors
Krzysztof Adamowicz
Poznań University of Life Sciences, Faculty of Forestry, Poznań, Poland
Ljiljana Keca
University of Belgrade, Faculty of Forestry, Belgrade, Serbia
© 2019 Krzysztof Adamowicz, Ljiljana Keca, published by Forest Research Institute
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.