References
- Apter, M. J. (1992). The dangerous edge: The psychology of excitement. New York, NY: Free Press.
- ATTA. (2013). Adventure tourism market study August 2013. Washington, DC: George Washington University.
- Beedie, P., & Hudson, S. (2003). The emergence of mountain based adventure tourism. Annals of Tourism Research, 30(3), 625–643. doi: 10.1016/S0160-7383(03)00043-4
- Godde, P. M., Price, M. F., & Zimmermann, F. M. (2000). Tourism and development in mountain regions: Moving forward into the new millennium. In P. M. Godde, M. F. Price, & F. M. Zimmermann (Eds.), Tourism and development in mountain regions (pp. 1–25). Wallingford: CABI.