@article {118,
	title = {Beitrage zur Anatomie und Histologie des Sipunculus nudus L},
	journal = {Zeitschrift fur wissenschaftliche zoologie},
	volume = {36},
	year = {1882},
	pages = {201-255},
	author = {Andreae, J.}
}
@article {117,
	title = {Zur Anatomie des <i>Sipunculus nudus</i> L},
	journal = {Zoologischer Anzeiger},
	volume = {4},
	year = {1881},
	pages = {477-481},
	author = {Andreae, J.}
}
