2OFFICE OF INTERNATIONAL STANDARDS AND LEGAL AFFAIRS, UNESCO. Convention on Wetlands of International Importance Especially as Waterfowl Habitat [EB/OL]. In: http://www. ramsar.org/key_conv_e.htm, 2004-05-08.
2BARON R V. Seasonality in Tourism-A Guide to the Analysis of Season- "ality and Trends for Polity Making [ M ]. London: The Economist Intelli- gence Unit Ltd, 1975 : 1 -5.
3HARTMANN R.-Toufism, Seasouality and Social Change [ J ]. Leisure Studies, 1986, 5( 1 ) :25 -33.
