TY  - RPRT
TI  - Further results from a trial comparing a hidden speed camera programme with visible camera operation.
AU  - Michael D Keall
AU  - Lynley J Povey
AU  - William J Frith
PY  - 2002
DO  - 10.1016/s0001-4575(01)00077-x
UR  - https://pubmed.ncbi.nlm.nih.gov/12371782/
ID  - 12371782
ER  -