lung im Einklang mit Mensch und Natur', Kümmerly & Frey, Bern, Switzerland; (1988) 'Von der Diskrepanz zwischen Zielen und Wirklichkeit', in J. Krippendorf, P. Zommer and H. Glauber (eds), 'Für einen andern Tourismus', Fischer Verlang, Frankfurt, pp. 165-172.
2.
Prince Saddruddin Aga Khan (1994) 'Tourism and a European Strategy for the Alpine Environment', in E. Cater and G. Lowman (eds), 'Ecotourism', John Wiley & Sons, New York, pp. 103-110.
3.
Swarbrooke, J. (1994) 'Greening and Competitive Advantage', Insights, May, D-43.
4.
Ibid.
5.
NSAA, ref. 4 above.
6.
Romeril, M. (1984) 'Tourism and the Environment — Towards a Symbiotic Relationship', International Journal of Environmental Studies, Vol. 25, pp. 215-218.
