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Materiały Budowlane > 2016 > nr 6 > 143--144, 151
Polish Journal of Management Studies > 2016 > Vol. 14, No. 2 > 203--213
Regional Research of Russia > 2014 > 4 > 4 > 271-278
Materiały Budowlane > 2016 > nr 6 > 143--144, 151
Polish Journal of Management Studies > 2016 > Vol. 14, No. 2 > 203--213
Regional Research of Russia > 2014 > 4 > 4 > 271-278