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Gendek, A. , Aniszewska, M., Tulska, E. and Siwek, J. 2021. Morphological variability of Douglas fir (Pseudotsuga menziesii (Mirb.) Franco) cones in the context of seed extraction: Morphological variability of Douglas fir cones. Baltic Forestry. 27, 2 (Nov. 2021). DOI:https://doi.org/10.46490/BF498.