@article {1777,
	title = {Tunicata. Ascidiae simplices (The simple ascidians)},
	journal = {Australasian Antarctic Expedition 1911-14.  Scientific Reports.  Series C. - Zoology and Botany},
	volume = {3},
	year = {1923},
	pages = {5-35},
	author = {Herdman, W.A.}
}
@article {214,
	title = {Neue und altbekannte Ascidien aus dem Reichsmuseum zu Stockholm.},
	journal = {Mitteilungen aus dem Zoologischen Museum in Hamburg},
	volume = {40},
	year = {1923},
	pages = {1-60},
	author = {Michaelsen, W.}
}
