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Foundations of Management > 2015 > 7 > 1 > 253-266
Journal of Entrepreneurship, Management and Innovation > 2014 > 10 > 1 > 79-108
Journal of Entrepreneurship, Management and Innovation > 2014 > 10 > 1 > 7-55
Informatyka Ekonomiczna > 2014 > 1(31) > 91-100