Markowska, Małgorzata, and Marek Sobolewski. 2015. “SENSITIVITY OF THE EUROPEAN UNION REGIONAL LABOUR MARKETS TO ECONOMIC CRISIS. CLASSIFICATION USING WARD METHOD WITH COHESION CRITERION”. Acta Universitatis Lodziensis. Folia Oeconomica 6 (308). https://czasopisma.uni.lodz.pl/foe/article/view/283.