1. Catling I & Harbord B J (1986) Electronic Road Pricing in Hong Kong — the Technology. Traffic Engineering and Control, October 1986
2. Catling I & Belcher P (1989) Autoguide — electronic route guidance for London and the UK. IEE conference publication number 299, February 1989
3. Catling I & Op de Beek F (1990) SOCRATES — System Of Cellular RAdio for Traffic Efficiency and Safety. Proceedings of PTRC Summer Annual Meeting, 1990
4. Catling I (1990) Functional requirements of automatic debiting systems within the DRIVE project TARDIS. Proceedings of the SECAP conference, March 1990
5. CEC (Commission of the European Communities) (1990) DRIVE '90 — R & D in Advanced Transport Telematics in Europe. DRI 201, March 1990