Authors
Vasyl Mohytych
Forest Research Institute, Department of Silviculture and Genetics of Forest Trees, Raszyn, Poland
Małgorzata Sułkowska
Forest Research Institute, Department of Silviculture and Genetics of Forest Trees, Raszyn, Poland
Marcin Klisz
Forest Research Institute, Department of Silviculture and Genetics of Forest Trees, Raszyn, Poland