@article {268,
	title = {Phylogeny and Evolution of Ferns (Monilophytes) with a focus on the early Leptosporangiate Divergences},
	year = {2004},
	doi = {doi: 10.3732/ajb.91.10.1582},
	url = {http://www.amjbot.org/content/91/10/1582.full},
	author = {Kathleen Pryer and Eric Schuettpelz and Paul Wolf and Harald Schneider and Alan Smith and Rayond Cranfill}
}
