Penchev, Georgi Georgiev, and Georgi Shinkov Zabunov. “REAL ESTATE PRICES – URBAN SECURITY RELATIONSHIPS: SPATIAL ANALYSES AND DEPENDENCIES”. Acta Universitatis Lodziensis. Folia Oeconomica 6, no. 309 (May 18, 2015). Accessed December 5, 2025. https://www.czasopisma.uni.lodz.pl/foe/article/view/280.