@article {31012,
	title = {Reconstructed Holocene bioclimates},
	volume = {67},
	year = {1977},
	pages = {214-22},
	publisher = {Annals of the Association of American Geographers},
	url = {http://www3.interscience.wiley.com/cgi-bin/fulltext/119623830/PDFSTART},
	author = {Sorenson, Curtis J.}
}
