Korwel-Lejkowska, Barbara. “TRANSFORMATION OF THE LANDSCAPE STRUCTURE OF THE SELECTED TESTING GROUNDS IN THE TRI-CITY AGGLOMERATION IN THE YEARS 1985–2012”. Quaestiones Geographicae, vol. 39, no. 2, Mar. 2020, pp. 31–42, doi:10.2478/quageo-2020-0011.