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Gospodarka Narodowa. The Polish Journal of Economics > 2013 > 266 > 9 > 53-67
Gospodarka Narodowa > 2013 > 9 > 53-67
Gospodarka Narodowa. The Polish Journal of Economics > 2011 > 249 > 7-8 > 47-69
MSIE 2011 > 783 - 787
Gospodarka Narodowa > 2011 > 7-8 > 47-69