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Studia Ekonomiczne > 2015 > 244 > 191-199
Information & Management > 2014 > 51 > 2 > 177-186
The Journal of Systems & Software > 2012 > 85 > 9 > 2014-2033
Studia Ekonomiczne > 2015 > 244 > 191-199
Information & Management > 2014 > 51 > 2 > 177-186
The Journal of Systems & Software > 2012 > 85 > 9 > 2014-2033