@ARTICLE{Szczukowski_Stefan_THE_2015, author={Szczukowski, Stefan and Tworkowski, Józef and Stolarski, Mariusz J. and Krzyżaniak, Michał}, number={No 22}, journal={Papers on Global Change IGBP}, howpublished={online}, year={2015}, publisher={Polish Academy of Sciences}, title={THE ENERGY EFFICIENCYOF WILLOW BIOMASS PRODUCTION IN POLAND– A COMPARATIVE STUDY}, URL={http://journals.pan.pl/Content/98886/mainfile.pdf}, doi={10.1515/igbp-2015-0020}, }