@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}
}
@article {437,
	title = {The phyletic status of the genus <i>Planaria</i> (Platyhelminthes, Turbellaria, Tricladida)},
	journal = {Bijdragen tot de Dierkunde},
	volume = {48},
	year = {1978},
	pages = {29-34},
	chapter = {29},
	author = {Ian R. Ball and Nicole Gourbault}
}
