Tipping Points and Models. - Catherine Cavagnaro; John Tiller (Int. J. Intell. Games Simul., 2011)

Risk Assessment and Tipping Points. - John Tiller; Catherine Cavagnaro (Int. J. Intell. Games Simul., 2012)

Continuous probability modifier functions and risk assessment. - Catherine Cavagnaro; John Tiller (CGAMES, 2013)