@article {567,
	title = {After a dozen years of progress the origin of angiosperms is still a great mystery},
	journal = {Nature},
	volume = {450},
	year = {2007},
	pages = {1184-1189 },
	chapter = {1184},
	doi = {doi:10.1038/nature06393},
	author = {Frohlich, Michael W. and Chase, Mark W.}
}
