@ARTICLE{Lewandowski_Andrzej_Focus_2004, author={Lewandowski, Andrzej}, number={Nr 2 (2) 2004 EUResearch}, journal={ACADEMIA. The magazine of the Polish Academy of Sciences}, pages={46-47}, howpublished={online}, year={2004}, publisher={Polish Academy of Sciences}, language={eng}, abstract={Because of the longevity and diversity of trees, dendrological studies often take many years. Research in Kórnik has been underway since 1926.}, title={Focus on Trees and Shrubs}, URL={http://ochroma.man.poznan.pl/Content/129892/PDF-MASTER/19_ACADEMIA_EN_2_2_2004_Lewandowski_Focus.pdf}, }