1. The Statistical Analysis of Series of Events;Cox,1966
2. Traffic conflict surveys: Some study design considerations;Hauer;TRRL Supplementary Report 352,1978
3. The year-to-year variability in the number of road accidents;Hutchison;Traffic Engng. Control,1977
4. Probability distributions for traffic accidents, injuries and deaths;MacLean;Australian Road Res.,1982
5. Road safety: The interpretation and use of accident data;Nicholson,1983