@article {38125,
	title = {Temporal changes and effects of amendments on the occurrence of sheathing (ecto-)mycorrhizas of conifers growing in oil sands tailings and coal spoil},
	volume = {35},
	year = {1991},
	pages = {261-281},
	publisher = {Agriculture, Ecosystems and Environment},
	url = {http://www.sciencedirect.com/science?_ob=MImg\&_imagekey=B6T3Y-48XKRV7-9P-1\&_cdi=4959\&_user=1067473\&_orig=search\&_coverDate=04\%2F30\%2F1991\&_sk=999649997\&view=c\&wchp=dGLzVtz-zSkWz\&md5=d9911e1d38e0a64c6aecf4701b887ebc\&ie=/sdarticle.pdf},
	author = {Danielson, R. M.}
}
