A Quantitative Analysis of the User Behavior of a Large E-Broker. - Virgílio A. F. Almeida; Wagner Meira Jr.; Victor F. Ribeiro; Nivio Ziviani (WECWIS, 1999)

Efficiency Analysis of Brokers in the Electronic Marketplace. - Virgílio A. F. Almeida; Wagner Meira Jr.; Victor F. Ribeiro; Nivio Ziviani (Comput. Networks, 1999)