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Hunecke, M., Haustein, S., Grischkat, S., & Böhler, S. (2007). Psychological, sociodemographic, and infrastructural factors as determinants of ecological impact caused by mobility behavior. Journal of Environmental Psychology, 27(4), 277-292. https://doi.org/https://doi.org/10.1016/j.jenvp.2007.08.001