Authors
Viktor Tkach
Ukrainian Research Institute of Forestry and Forest Melioration named after G. M. Vysotsky, Kharkiv, Ukraine
Oleksandr Bondar
Ukrainian Research Institute of Forestry and Forest Melioration named after G. M. Vysotsky, Kharkiv, Ukraine
Maksym Rumiantsev
Ukrainian Research Institute of Forestry and Forest Melioration named after G. M. Vysotsky, Kharkiv, Ukraine