Krajewska, M., K. Szopińska, E. Siemińska, and I. Kostov. “REVITALIZATION AS AN ACTION IN SPACE – CASE STUDY OF LARGE CITIES IN POLAND AND BULGARIA”. GIS Odyssey Journal, vol. 2, no. 1, Sept. 2022, pp. 153-7, doi:10.57599/gisoj.2022.2.1.153.