Authors
Iwona Szyp-Borowska
Forest Research Institute, Department of Silviculture and Genetics of Forest Trees, Poland
Anna Zawadzka
University of Warmia and Mazury, Faculty of Agriculture and Forestry, Department of Forestry and Forest Ecology, Olsztyn, Poland
Tomasz Wojda
Forest Research Institute, Department of Silviculture and Genetics of Forest Trees, Poland
Marcin Klisz
Forest Research Institute, Department of Silviculture and Genetics of Forest Trees, Poland