@article{ERMS:SourceID:81884,
author = {Claus, C.},
journal = {N.G. Elwert'sche Verlagsbuchhandlung, Marburg},
note = {"Principles of zoology, for scientific use" Record for Volume 1 only.
BHL DOI for both volumes = http://dx.doi.org/10.5962/bhl.title.1113
Cnidaria = p.222-294.
Annelida = p.455-505},
title = {Grundzüge der Zoologie, zum wissenschaftlichen gebrauche [fourth edition]},
url = {http://biodiversitylibrary.org/page/913950},
year = {1880}
}