@article{MolluscaBase:SourceID:39258, author = {Boettger, C. R. }, journal = {Zoologischer Anzeiger, Supplement}, note = {CLEMAM P0194}, pages = {223-256}, title = {Beiträge zur Systematik der Urmollusken (Amphineura)}, url = {https://molluscabase.org/aphia.php?p=sourcedetails&id=39258}, volume = {19}, year = {1956} }