1. Verkehsberuhigung, Fussgängerzonen Arkaden-Passagen-Galerien;BAG,1988
2. Towards an Evaluation method for Pedestrianisation Schemes;Cashmore,1981
3. Retail and Commercial Planning;Davies,1984
4. Einkauffsmagnet Fussgängerzone;DIHT,1979
5. Environmental traffic management—the German Interministerial Research Programme;Döldisson,1988