@ARTICLE{_Contents_2021, number={No 1 (69) Energy Transtion}, journal={ACADEMIA. The magazine of the Polish Academy of Sciences}, howpublished={online}, year={2021}, publisher={Polish Academy of Sciences}, language={eng}, type={Contents}, title={Contents}, URL={http://www.czasopisma.pan.pl/Content/120854/PDF/002-002_Spis%20tresci_ang.pdf}, }