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Robert Krzysztofik
University of Silesia in Katowice, Faculty of Natural Sciences, Institute of Social and Economic Geography and Spatial Management Sosnowiec, Poland
Weronika Dragan
University of Silesia in Katowice, Faculty of Natural Sciences, Institute of Social and Economic Geography and Spatial Management Sosnowiec, Poland
Krzysztof Soida
PKP CARGO S.A.Katowice, Poland
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