@misc{Chałupka_Władysław_The_1975, author={Chałupka, Władysław and Giertych, Maciej}, volume={20}, editor={Polska Akademia Nauk. Instytut Dendrologii}, copyright={Creative Commons Attribution BY-SA 4.0 license}, address={Poznań ; Warszawa}, journal={Arboretum Kórnickie}, howpublished={online}, year={1975}, publisher={Państwowe Wydawnictwo Naukowe}, language={mul}, type={Text}, title={The effect of growth on cone crops in Norway spruce (Picea abies (L.) Karst.)}, title={The effect of growth on cone crops in Norway spruce (Picea abies (L.) Karst.)}, URL={http://rcin.org.pl/id/Content/155643/PDF/KOR001_147003.pdf}, keywords={Picea abies, Norway spruce, cone crops, growth of Norway spruce}, }