TY - JOUR A1 - Kowal, Witold PB - The Committee on Organizational and Management Sciences PB - Warsaw School of Economics L2 - http://journals.pan.pl/Content/98707 PY - 2013 IS - No 157 T1 - SKUTECZNOŚĆ I EFEKTYWNOŚĆ – ZRÓŻNICOWANE ASPEKTYINTERPRETACJI EFFECTIVENESS AND EFFICIENCY – DIVERSE ASPECTS OF INTERPRETATION UR - http://journals.pan.pl/dlibra/publication/edition/98707 T2 - Organization and Management ER -