A Williamson

Balancing work and rest to combat driver fatigue: an investigation of two-up driving in Australia.

A M Feyer, A Williamson, R Friswell, 1997, Accident; analysis and prevention.

Comparison of fatalities from work related motor vehicle traffic incidents in Australia, New Zealand, and the United States

A Williamson, A-M Feyer, J Langley, 2005, Injury Prevention.