@article {650,
	title = {Ueber aller bekannten Arten von Cyclostomaceen},
	journal = {Zeitschrift f{\"u}r Malakozoologie},
	volume = {4},
	year = {1847},
	pages = {101-112},
	chapter = {101},
	url = {http://www.biodiversitylibrary.org/item/55050$\#$615},
	author = {L. Pfeiffer}
}
