7Mathias K. Who do you trust? Beyond encryption, secure e-business[J]. Decision Support Systems, 2001, 31(3): 293-301.
8Westland J. Transaction risk in electronic commerce[J]. Decision Support Systems, 2002, 33( 1 ): 87-103.
9Bose G. Bargaining economies with patient and impatient agents: Equilibria and intermediation[ J]. Games and Economic Behavior,1995, 12(2): 149-172.
10Vishik C. Intermediation and quality uncertainty in the intemet environment: New opportunities for LIS[J]. journal of Education for Library and Information Science, 1999, 40(4) : 263-281.