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Polish Journal of Management Studies > 2019 > Vol. 20, No. 2 > 345--357
Empirical Economics > 2019 > 57 > 1 > 329-343
Gospodarka Narodowa > 2014 > 6 > 57-80
Studia Prawno-Ekonomiczne > 2015 > XCIV (94) > 291-302
Gospodarka Narodowa. The Polish Journal of Economics > 2014 > 274 > 6 > 57-80
Gospodarka Narodowa. The Polish Journal of Economics > 2011 > 249 > 7-8 > 47-69
Gospodarka Narodowa > 2011 > 7-8 > 47-69