1. ITU Recommendation X.901 I ISO/IEC CD 10746–1, Open Distributed Processing - Reference Model - Part 1: Overview (1994).
2. ITU Recommendation X.902 I ISO/IEC 10746–2: 1995, Open Distributed Processing - Reference Model - Part 2: Overview.
3. ITU Recommendation X.903 I ISO/IEC 10746–3: 1995, Open Distributed Processing - Reference Model - Part 3: Overview.
4. ITU Recommendation X.904 I ISO/IEC CD 10746–4, Open Distributed Processing - Reference Model - Part 4: Overview (1994).
5. Bowman, H., Derrick, J., Steen, M., “Some Results on Cross Viewpoint Consistency Checking”, Proc. ICODP’95, Brisbane, Australia, February 1995