1. Anzalone, Charles, 2014. NFL concussion lawsuit could have wide impact on other athletes, says UB expert on class action litigation. http://www.buffalo.edu/news/releases/2014/10/005.html (accessed 1/11/14).
2. Associated Press, 2014. Federal judge approves NFL concussion settlement. http://www.nfl.com/news/story/0ap2000000363672/article/federal-judge-approves-nfl-concussion-settlement (accessed 1/11/14).
3. Crime and punishment: An economic approach;Becker;J. Political Econ.,1968
4. The Economic Approach to Human Behavior;Becker,1976
5. Nobel lecture: The economic way of looking at behaviour;Becker;J. Political Econ.,1993