Lang, Thilo. “Socio-Economic and Political Responses to Regional Polarisation and Socio-Spatial Peripheralisation in Central and Eastern Europe: A Research Agenda”. Hungarian Geographical Bulletin 64, no. 3 (October 6, 2015): 171-185. Accessed April 23, 2024. https://ojs.mtak.hu/index.php/hungeobull/article/view/2780.