@article {41548,
	title = {Longitudinal patterns of plant diversity in the North American boreal forest},
	volume = {138},
	year = {1998},
	pages = {161-178},
	publisher = {Plant Ecology},
	url = {http://www.springerlink.com/content/q7mj4403592271p7/fulltext.pdf},
	author = {Qian, Hong and Klinka, Karel and Kayahara, Gordon J.}
}
