4Don R Swanson, Neil R Smalheiser. An interactive system for finding complementary literature: a stimulus to scientific discovery [J].Artificial Intelligence,1997 (4): 183-203.
5Farrell,L A.So you want to be a consultant.Records Management Quarterly,Jan1997.http://web.ebscohost.com/ehost/detail? vid=40&hid=15&sid=969a15fd-efb9-46d4-8d1b-6def73a9b90d%40sessionmgr7.[2006-11-2]
6Amir M.Sharif.Professional services organizations and the role of consulting in the new economy.Information Systems Management.Spring 2002:26.