@article {355,
	title = {Freshwater triclads (Turbellaria) of North America. I. The genus <i>Planaria</i>},
	journal = {Proceedings of the Biological Society of Washington},
	volume = {82},
	year = {1969},
	pages = {539-558},
	url = {http://biostor.org/cache/pdf/4c/a3/b1/4ca3b13e06042eaff7c677d64b1f3735.pdf},
	author = {Roman Kenk}
}
