@article {1771,
	title = {New species of flatworms from North, Central, and South America},
	journal = {Proceedings of the United States National Museum},
	volume = {86},
	year = {1939},
	pages = {419-439},
	url = {http://www.biodiversitylibrary.org/page/7569365$\#$page/507/mode/1up},
	author = {Libbie H. Hyman}
}
@article {666,
	title = {North American triclad Turbellaria. IX. The priority of <i>Dugesia</i> Girard 1850 over Euplanaria Hesse 1897 with notes on American species of <i>Dugesia</i>},
	journal = {Transactions of the American Microscopical Society},
	volume = {58},
	number = {3},
	year = {1939},
	month = {07/1939},
	pages = {264-275},
	publisher = {Wiley},
	doi = {10.2307/3222879},
	url = {http://www.jstor.org/stable/3222879},
	author = {Libbie H. Hyman}
}
@inbook {779,
	title = {Rotif{\`e}res et Turbellari{\'e}s},
	booktitle = {The Percy Sladen Trust Expedition to Lake Titicaca in 1937},
	volume = {1},
	number = {3},
	year = {1939},
	pages = {51-79},
	publisher = {Transactions of the Linnean Society of London, Zoology},
	organization = {Transactions of the Linnean Society of London, Zoology},
	author = {De Beauchamp, Paul}
}
