20

Urban ecotourism: Defining and assessing dimensions using fuzzy number construction

Year:
2010
Language:
english
File:
PDF, 237 KB
english, 2010
22

A method to assess the allocation suitability of recreational activities: An economic approach

Year:
1996
Language:
english
File:
PDF, 1.17 MB
english, 1996
26

A systematic approach to natural recreational resource management

Year:
1996
Language:
english
File:
PDF, 803 KB
english, 1996