@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} }