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Elena Neverova-Dziopak
Department of Management and Protection of Environment, AGH University of Science and Technology, al. A. Mickiewicza 30, 30-059 Krakow, Poland, phone +48 12 617 47 04
Zbigniew Kowalewski
Department of Management and Protection of Environment, AGH University of Science and Technology, al. A. Mickiewicza 30, 30-059 Krakow, Poland, phone +48 12 617 47 04