@article {38983,
	title = {Rapid response of treeline vegetation and lakes to past climate warming},
	volume = {361},
	year = {1993},
	pages = {243-246},
	publisher = {Nature},
	url = {http://lrc.geo.umn.edu/nature.pdf},
	author = {MacDonald, Glen M. and Edwards, Tom W. E. and Moser, Katrina A. and Pienitz, Reinhard and Smol, John P.}
}
