Nigg, C. R., Geller, K. S., Motl, R. W., Horwath, C. C., Wertin, K. K., & Dishman, R. K. (2011). A Research Agenda to Examine the Efficacy and Relevance of the Transtheoretical Model for Physical Activity Behavior.

Nigg, Claudio R., Karly S. Geller, Rob W. Motl, Caroline C. Horwath, Kristin K. Wertin, و Rodney K. Dishman. A Research Agenda to Examine the Efficacy and Relevance of the Transtheoretical Model for Physical Activity Behavior. 2011.

Nigg, Claudio R., et al. A Research Agenda to Examine the Efficacy and Relevance of the Transtheoretical Model for Physical Activity Behavior. 2011.