5Ruggles, R., The state of the notion: knowledge management in practice [J]. California Management Review, 40(3), 1998:80~89.
6The knowledge-creating company[M],Ikujiro Nonaka,Hirotaka Takeuchi.NewYork:Oxford University Press,1995.
7SECI, ba and leadership: A unified model of dynamic knowledge creation; Ikujiro Nonaka; Long Range Planning,London; Feb 2000; Vol. 33, Iss. 1; pg. 5
8The concept of ''ba'': Building a foundation for knowledge creation; Ikujiro Nonaka; California Management Review,Berkeley; Spring 1998; Vol. 40, Iss. 3; pg. 40, 15 pgs