@article {1961,
	title = {Drei neue Pneumonopomen aus Borneo},
	journal = {Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft},
	volume = {25},
	year = {1893},
	pages = {194-197},
	chapter = {194},
	author = {O. Boettger}
}
@article {250,
	title = {Ein neuer Amphidromus aus Borneo},
	journal = {Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft},
	year = {1894},
	pages = {66-67},
	chapter = {66},
	url = {http://www.biodiversitylibrary.org/item/53280$\#$page/302/mode/1up},
	author = {O. Boettger}
}
