Hristić, Nataša Danilović, and Nebojša Stefanović. “Does Appearance of the Migrants Change Citizens Perception of the Public Space? Case Study of Disturbed Sustainability, Belgrade, Serbia”. Problemy Ekorozwoju, vol. 15, no. 1, Jan. 2020, pp. 71-80, doi:10.35784/pe.2020.1.08.