Authors
Marta Siebyła
Forest Research Institute, Department of Scientific Information and Promotion, Raszyn, Poland
Iwona Szyp-Borowska
Forest Research Institute, Department of Silviculture and Genetics of Forest Trees, Raszyn, Poland
© 2021 Marta Siebyła, Iwona Szyp-Borowska, published by Forest Research Institute
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.