author = { Helliar-Symons, R. D. AND Lynam, D. A. },

title = { Accident reduction and prevention programmes in highway authorities 1987 },

publisher = {TRRL},

year = {1989},

booktitle = {Research report / Transport and Road Research Laboratory, Department of Transport ; 187},

address = { Crowthorne },

url = { http://slubdd.de/katalog?TN_libero_mab2 }