Rechlowicz, Marcin, and Maria Tkocz. “DEPOPULATION OF TRADITIONAL MINING REGIONS IN CENTRALAND EAST EUROPE: CASE STUDY OF THE UPPERSILESIAN BASIN (POLAND)AND THE DONETSK BASIN (UKRAINE)”. European Scientific Journal, ESJ, vol. 9, no. 21, July 2013, doi:10.19044/esj.2013.v9n21p%p.