1. European Commission Document AC971392-PS: “ACTS (Advanced Communications Technologies & Services) 97, Project Summaries”, June 1997.
2. ACTS SIA Guideline 3 “Enterprise Models of Electronic Brokerage” Edited by Dr. Stephen Plagemann and Dr. Jenny Hands. Version 1.6, September 1997.
3. MULTIMEDIATOR Document A0096/UPC/DAC/PI/I/031/al “Contribution to SIA Guideline 3”, May 1997.
4. MULTIMEDIATOR Document A0096/UPC/DAC/PI/I/038/al “Application and Middleware functions for electronic brokerage — A MULTIMEDIATOR contribution to SIA-G3”, September 1997.
5. EWOS/ETG 066: “EWOS Technical guide on electronic commerce”, September 1996.