@misc{Chałupka_Władysław_Studies_1977, author={Chałupka, Władysław and Fober, Henryk}, volume={22}, editor={Polska Akademia Nauk. Instytut Dendrologii}, copyright={Creative Commons Attribution BY-SA 4.0 license}, address={Poznań ; Warszawa}, journal={Arboretum Kórnickie}, howpublished={online}, year={1977}, publisher={Państwowe Wydawnictwo Naukowe}, language={mul}, type={Text}, title={Studies on the effect of mineral fertilisation on flowering and cone and seed crops in Scots pine (Pinus silvestris L.) through an analysis of the litter drop}, title={Studies on the effect of mineral fertilisation on flowering and cone and seed crops in Scots pine (Pinus silvestris L.) through an analysis of the litter drop}, URL={http://www.rcin.org.pl/Content/188522/PDF/KOR001_147207.pdf}, keywords={seed crops in scots pine, cone crops in scots pine, effect of mineral fertilization}, }