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Comparative Economic Research. Central and Eastern Europe > 2022 > 25 > 1 > 55-74
AGH Journal of Mining and Geoengineering > 2012 > Vol. 36, no. 3 > 243-252
Management > 2012 > Vol. 16, no. 1 > 709-722
Management > 2010 > Vol. 14, no 2 > 148-160
Przemysł Spożywczy > 2010 > T. 64, nr 11 > 4-8