1. Behnke, R. W. Videotex—transportation information systems. Proceedings of the Governor's Conference on Videotex, Transportation and Energy Conservation. Honolulu, Hawaii. pp.36–44.
2. Bourner, M. S. UTC Getting Started . Proceedings of the International Conference on Road Traffic Signalling, Institution of Electrical Engineers (UK). pp.40–43. Conference Publication No. 207
3. Man and his transport behaviour. Part 1. Telecommunication and transport — a scientific no man's land?