Gwosdz, K., Micek, G., Sobala-Gwosdz, A. . and Świgost, A. . (2019) “Review of the Issue of Indicators of the Economic Condition of Cities in Poland”, Studies of the Industrial Geography Commission of the Polish Geographical Society, 33(2), pp. 59–80. doi: 10.24917/20801653.332.5.