@inbook {268,
	title = {Sipunculoidea und Echiuroidea},
	booktitle = {Die Fauna Sudwest-Australiens},
	year = {1927},
	pages = {199-216},
	author = {Fischer, W.},
	editor = {Michaelsen, W. and Hartmeyer, R.}
}
@article {419,
	title = {Die Gephyreen von Sud-Georgien nach der Ausbeute der deutschen Station von 1882-1883},
	journal = {Jahrbuch der Hamburg Wissenschaftliche},
	volume = {6},
	year = {1889},
	pages = {73-84},
	author = {Michaelsen, W.}
}
