@article {308516,
	title = {Early European may have had Neanderthal great-great-grandparent},
	year = {2015},
	url = {http://www.nature.com/news/early-european-may-have-had-neanderthal-great-great-grandparent-1.17534?WT.mc_id=TWT_NatureNews},
	author = {Callaway, E.}
}
