Artz, N., & Cooke, P. (2007). Using e-mail listservs to promote environmentally sustainable behaviors. Journal of Marketing Communications, 13(4), 257-276.

Thomas, E.F., McGarty, C., Mavor, K.I. (2009). Aligning identities, emotions, and beliefs to create commitment to sustainable social and political action. Personality and Social Psychology Review, 13(3), 194-218.

Montada, L., Kals, E., & Becker, R. (2007). Willingness for continued social commitment: A new concept in environmental research. Environment and Behavior, 39, 287-316.

Gopinath, M., & Nyer, P.U. (2009). The effect of public commitment on resistance to persuasion: The influence of attitude certainty, issue importance, susceptibility to normative influence, preference for consistency and source proximity. International Journal of Research in Marketing, 26(1), 60-68.

Cialdini, R. B., & Goldstein, N. J. (2004). Social influence: Compliance and conformity. Annual Review of Psychology 55(1), 591-621.

Cooper, C. (2007). Successfully changing individual travel behavior: Applying community-based social marketing to travel choice. Transportation Research Record, (2021), pp. 88-99.

Matthies, E., Klöckner, C., & Preißner, C. (2006). Applying a Modified Moral Decision Making Model to Change Habitual Car Use: How Can Commitment be Effective?. Applied Psychology: An International Review, 55(1), 91-106.

Schultz, P. W., Oskamp, S., & Mainieri, T. (1995). Who recycles and when? A review of personal and situational factors. Journal of Enviornmental Psychology, 15, 2, 105-121.