@article {44588,
	title = {Effects of water deficit stress and recovery on the root water relations of trembling aspen (Populus tremuloides) seedlings},
	volume = {165},
	year = {2003},
	pages = {113-120},
	publisher = {Plant Science},
	url = {http://www.springerlink.com/content/nnn5p6ac69x4dw0l/fulltext.pdf},
	author = {Siemens, J. A. and Zwiazek, J. J.}
}
