Mesjasz-Lech, Agata. “APPLICATION OF DEA METHOD IN ANALYSE OF THE EFFECTIVENESS OF AIR POLLUTION PREVENTION ACTIVITIES - A REGIONAL LEVEL STUDY”. Acta Universitatis Lodziensis. Folia Oeconomica 6, no. 308 (May 18, 2015). Accessed May 5, 2024. https://www.czasopisma.uni.lodz.pl/foe/article/view/285.