Sobolewski, Marek, et al. “RANKING THE STANDARDS OF LIVING IN DISTRICTS IN POLAND BETWEEN 2003 AND 2012 INCLUDING SPATIAL CORRELATION”. Acta Universitatis Lodziensis. Folia Oeconomica, vol. 6, no. 308, May 2015, https://czasopisma.uni.lodz.pl/foe/article/view/272.