Oom Do Valle, P., Rebelo, E., Reis, E., & Menezes, J. (2005). Combining Behavioral Theories to Predict Recycling Involvement. Environment and Behavior, 37(3), 364-396. doi:10.1177/0013916504272563.

Shaheen, S.A., Kemmerer, C. (2008). Smart parking linked to transit: Lessons learned from field test in San Francisco Bay area of California. Transportation Research Record, (2063), pp. 73-80.

Meneses, G., & Palacio, A. (2007). The response to the commitment with block-leader recycling promotion technique: A longitudinal approach. Journal of Nonprofit & Public Sector Marketing, 17(1-2), 83-102.

Bandura, A. (2001). Social cognitive theory of mass communication. Media Psychology, 3(3), 265-299.

Nolan, J. M., Schultz, P. W., Cialdini, R. B., Goldstein, N. J., Griskevicius V. (2008). Normative Social Influence is Underdetected. Personality and Social Psychology Bulletin, 34 (7), 913-923.

Schultz P. W., Nolan J. M., Cialdini R. B., Goldstein N. J., Griskevicius Vladas (2007). The Constructive, Destructive, and Reconstructive Power of Social Norms. Psychological Science, 18(5), 429-434.

Werner, Carol M.; Byerly, Sari; White, Paul H.; Kieffer, Matthew (2004). Validation, Persuasion and Recycling: Capitalizing on the Social Ecology of Newspaper Use. Basic and Applied Social Psychology, 26, 2, 183-198.

Schultz, P. W., Khazian, A., Zaleski, A. (2008). Using normative social influence to promote conservation among hotel guests. Social Influence, 3(1), 4-23.

Möser, G., & Bamberg, S. (2008). The effectiveness of soft transport policy measures: A critical assessment and meta-analysis of empirical evidence. Journal of Environmental Psychology, 28(1), 10-26.

Nolan, J., Schultz, P., & Knowles, E. (2009). Using public service announcements to change behavior: No more money and oil down the drain. Journal of Applied Social Psychology, 39(5), 1035-1056.