4Sang Bong Yoo,Yeongho Kim.Web-based knowledge management for sharing product data in virtual enterprises.International Journal of Production Economics.2002,75(1-2):173-183.
5A.T.M.Aerts,N.B.Szirbik,J.B.M.Goossenaerts.A flexible,agent-based ICT architecture for virtual enterprises.Computers in Industry,2002,49:311-327.