Michel-Guillou, E., & Moser, G. (2006). Commitment of farmers to environmental protection: From social pressure to environmental conscience. Journal of Environmental Psychology, 26(3), 227-235.

Lokhorst, A.M., van Dijk, J., Staats, H., van Dijk, E., & de Snoo, G. (2010). Using tailored information and public commitment to improve the environmental quality of farm lands: An example from the Netherlands. Human Ecology, 38(1), 113-122.

Kortenkamp, K., & Moore, C. (2009). Children's moral evaluations of ecological damage: The effect of biocentric and anthropocentric intentions. Journal of Applied Social Psychology, 39(8), 1785-1806.