@article {5059,
	title = {A new cost-distance model for human accessibility and an evaluation of accessibility bias in permanent vegetation plots in Great Smoky Mountains National Park, USA},
	journal = {Journal of Vegetation Science},
	volume = {20},
	year = {2009},
	note = {Maps, Tables},
	pages = {1099-1109},
	publisher = {International Association for Vegetation Science},
	keywords = {Ecology, Ecosystem, Hiking, Vegetation monitoring},
	author = {R. Todd Jobe and White, Peter S}
}
