1. The value of forests for tourism in Sweden
2. The association of small mammals with coarse woody debris at log and stand scales
3. Boyers , L , Fincher , M & van Wagtendonk , J 2000 , ‘ Twenty-eight years of wilderness campsite monitoring in Yosemite National Park ’, in DN Cole , SF McCool , WA Freimund , WT Borrie & J O'Loughlin , Wilderness science in a time of change conference , Missoula, MT , 23 – 27 May 1999 , USDA Forest Service , Ogden , UT .
4. Visitor impact on backcountry campsites in the Great Smoky Mountains