@ARTICLE{Kleer_Jerzy_Poland_2016, author={Kleer, Jerzy}, number={No 23}, journal={Papers on Global Change IGBP}, howpublished={online}, year={2016}, publisher={Polish Academy of Sciences}, title={Poland and Global Threats}, URL={http://ochroma.man.poznan.pl/Content/100314/PDF/9%20POLAND%20AND%20GLOBAL.pdf}, doi={10.1515/igbp-2016-0007}, }