1. Driver response to parking guidance and information systems;Allen;Traffic Engineering and Control,1993
2. Effectiveness of the parking guidance information system in Frankfurt am Main;Axhausen;Traffic Engineering and Control,1994
3. The FRUIT: a goal-oriented approach to traffic management in Frankfurt am Main and the Rhine-Main region;Boltze;Traffic Engineering and Control,1994
4. A fantastic goal for Brazil;Borras;Traffic Technology International,1999
5. A system architecture for Romanse;Bossom;Traffic Technology International,1997