@misc{Kamiński_Jacek_Wojciech_Seeing, author={Kamiński, Jacek Wojciech and Strużewska, Joanna}, pages={4-9}, howpublished={online}, abstract={What is smog, what does it consist of, and where does it come from? How badly polluted is the air in Poland in relation to other countries in Europe?}, type={Article}, title={Seeing gray}, keywords={smog, air pollution in Poland}, }