1. Antonovsky, A. (1997). Salutogenese: Zur Entmystifizierung der Gesundheit. Tübingen: DGVT.
2. Appleton, J. (1975). The experience of landscape. New York: Wiley.
3. Berti, T. (1997). Naturästhetik und Umweltpädagogik. Dissertation, Innsbruck.
4. Billmann-Mahecha, E., & Gebhard, U. (2009). „If we had no flowers …“ children, nature, and aestetics. The Journal of Developmental Processes, 4(1), 24–42.
5. Bixler, R. D., Floyd, M. F., & Hammitt, W. E. (2002). Environmental socialization: Quantitative tests of the childhood play hypothesis. Environment and Behavoir, 34(6), 795–818.