Zawieja, . B., K. Turczański, T. Najgrakowski, and K. Kaźmierczak. “The Use of Measurable Traits of Trunk and Crown to Assess the Biosocial Classes of Oak Trees (Quercus Robur L.)”. Baltic Forestry, vol. 27, no. 1, June 2021, doi:10.46490/BF542.