@article {34948,
	title = {Chemical properties of black cottonwood and balsam poplar},
	volume = {16},
	year = {1986},
	pages = {497-501},
	publisher = {Canadian Journal of Forest Research},
	url = {http://article.pubs.nrc-cnrc.gc.ca/RPAS/RPViewDoc?_handler_=HandleInitialGet\&calyLang=eng\&journal=cjfr\&volume=15\&articleFile=x85-168.pdf},
	author = {Swan, E. P. and Kellogg, R. M.}
}
