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2. Automobile Club of Southern California (2001, August 9). Graduated driver license law reduces California teen passenger deaths and injuries 40%: ground-breaking measure marks third anniversary [News Release]. Available: http://www.aaa-calif.com/members/corpinfo/gdl2.asp. Accessed October 15, 2002.
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4. Commonwealth of Pennsylvania Department of Transportation. Commonwealth News Bureau (2002, September 26). PENNDOT debuts interactive website for young drivers [News Release].
5. Use of a Bayesian changepoint model to estimate effects of a graduated driver's licensing program;Elliott;Journal of Data Science,2003