@article {636,
	title = {Nachtr{\"a}ge zur Monographia Pneumonoporum},
	journal = {Malakozoologische Bl{\"a}tter},
	volume = {1},
	year = {1854},
	pages = {80-111},
	chapter = {80},
	url = {http://www.biodiversitylibrary.org/item/53876$\#$96},
	author = {L. Pfeiffer}
}
