1. 1997. Managing knowledge ? experts, agencies and organizations. Cambridge University Press: Cambridge.
2. 2000. Managing formal and informal knowledge within the organizations: re-defining the role of information professionals. In Proceedings of the Knowledge Management Conference (KMAC 2000), (eds). 17-18 July, Birmingham, UK.
3. 1998. Managing Knowledge: A Practical Web-Based Approach. Addison-Wesley: London.
4. 1994. On Organizational Learning. Blackwell: Cambridge, MA.
5. 1997. Harnessing the power of intellectual capital. In The Knowledge Management Yearbook 1999-2000, (eds). Butterworth-Heinemann: Boston, MA.