@ARTICLE{Lorens_Piotr_Contemporary_2016, author={Lorens, Piotr}, number={No 264}, journal={Biuletyn KPZK}, howpublished={online}, year={2016}, publisher={PAN, Komitet Przestrzennego Zagospodarowania Kraju}, title={Contemporary Issues in Production and Utilisation of the Common Urban Areas}, URL={http://www.czasopisma.pan.pl/Content/100750/PDF/13%20-%20Piotr%20Lorens%203.pdf}, }