1. Bunn, D. E. (1986). Group cohesiveness is enhanced as children engage in plant stimulated discovery activities. Journal of Therapeutic Horticulture, 1, 37–43.
2. Cammack, C., Waliczek, T. M., & Zajicek, J. M. (2002). The green brigade: The psychological effects of a community-based horticultural program on the self-development characteristics of juvenile offenders. Horticultural Technology, 12(1), 82–86.
3. Cervinka, R., Roderer, K., Hammerle, I., Hemmelmeier-Handel, B., & Hauer, T. (2012). From open and green space at hospitals to healing gardens? Transdisciplinary assessment and recommendations for (re)design. Case study presented at the 22nd International Association of People-Environment Studies Conference, Glasgow.
4. Cobley, M. (2003). A place to delight the senses and refresh the soul. Journal of Dementia Care, 11(4), 2–23.
5. Cohen-Mansfield, J., & Werner, P. (1998). Visits to an outdoor garden: Impact on behaviour and mood of nursing home residents who pace. In B. J. Vellas & L. J. Fitten (Eds.), Research and practice in Alzheimer’s disease (pp. 419–436). New York: Springer Publishing Company.