2Gera,S.and Mang,K.The Knowledge-Based Economy:Shifts in Industrial Output.Industry Canada and Department of Finance working paper,No.15,January 1997,68-79.
3Mansell,R.and When,U.Knowledge Societies:Information Technology for Sustainable Development.Oxford University Press,1998:20-23.
4Sircar,S.,Nerur,S.P.,and Mahapatra,R.,Revolution or evolution? A comparison of objectoriented and structured systems development methods.MIS Quarterly,25(4),December 2001:457-471.