@article {43404,
	title = {Photosynthesis and carbon allocation of six boreal tree species grown in understory and open conditions},
	volume = {21},
	year = {2001},
	pages = {243-250},
	publisher = {Tree Physiology},
	author = {Landh{\"a}usser, S. M. and Lieffers, V. J.}
}
