Piłatowska M, Włodarczyk A, Zawada M. The Environmental Kuznets Curve in Poland – Evidence from Threshold Cointegration Analysis. DEM [Internet]. 2015 Apr. 15 [cited 2025 Jul. 9];14:51-70. Available from: https://apcz.umk.pl/DEM/article/view/DEM.2014.003