@article {ChitwoodAndChitwood1934,
	title = {Daubaylia potomaca, n. sp., a nematode parasite of snails, with a note on other nemas associated with molluscs},
	journal = {Proceedings of the Helminthological Society of Washington},
	volume = {1},
	number = {8-9},
	year = {1934},
	author = {Chitwood, B. G. and Chitwood, M. B.}
}
@article {Filipjev1934,
	title = {The classification of the free-living nematodes and their relation to the parasitic nematodes},
	journal = {Smithsonian Miscellaneous Collections},
	volume = {89},
	number = {6},
	year = {1934},
	pages = {1{\textendash}63},
	author = {Filipjev, I.N.}
}
