@article {48269,
	title = {The interaction between nitrogen source, soil pH, and drought in the growth and physiology of three poplar clones},
	volume = {85},
	year = {2007},
	pages = {1046-57},
	publisher = {Canadian Journal of Botany},
	url = {http://article.pubs.nrc-cnrc.gc.ca/RPAS/rpv?hm=HInit\&calyLang=eng\&journal=cjb\&volume=85\&afpf=b07-062.pdf},
	author = {DesRochers, Annie and van den Driessche, R. and Thomas, Barb R.}
}
