Boguslaw Podhalanski (2017). ECOLOGY AS AN ICON OF THE CONTEMPORARY DEVELOPMENT OF METROPOLISES. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Nano, Bio and Green - Technologies for a Sustainable Future, 845-852. https://doi.org/10.5593/sgem2017h/63/s27.105