@article {45246,
	title = {Crown cover is correlated with relative density, tree slenderness, and tree height in lodgepole pine},
	volume = {50},
	year = {2004},
	pages = {356-363},
	publisher = {Forest Science},
	author = {Rudnicki, Mark and Silins, Uidis and Lieffers, Victor J.}
}
