@article {10292,
	title = {Land of the Blue Smoke},
	journal = {National Parks},
	volume = {81},
	year = {2007},
	month = {spring},
	pages = {18-19},
	keywords = {Air quality, Flora},
	url = {http://www.thefreelibrary.com/Land+of+the+blue+smoke\%3A+exploring+the+scientific+phenomenon+that...-a0162101292},
	author = {Marquis, Amy Leinbach}
}
