@article {47516,
	title = {Vector analysis of understory competition, N fertilization, and litter layer removal effects on white spruce growth and nutrition in a 13-year-old plantation},
	volume = {236},
	year = {2006},
	pages = {332-341},
	publisher = {Forest Ecology and Management},
	author = {Matsushima, Miwa and Chang, Scott X.}
}
