@article {39768,
	title = {Differences in bird species richness and abundance among three successional stages of aspen-dominated boreal forests},
	volume = {73},
	year = {1995},
	pages = {1417-1431},
	publisher = {Canadian Journal of Zoology},
	url = {http://article.pubs.nrc-cnrc.gc.ca/RPAS/RPViewDoc?_handler_=HandleInitialGet\&calyLang=eng\&journal=cjz\&volume=74\&articleFile=z96-063.pdf},
	author = {Schieck, J. and Nietfeld, M. and Stelfox, J. B.}
}
