@article {332,
	title = {Ascidiae Ptychobranchiae und Distyobranchiae von Neuseeland und den Chatham-Inseln},
	journal = {Inseln Videnskabelige Meddelser fra Dansk Naturhistorisk Forening i Kjobenhavn},
	volume = {73},
	year = {1922},
	pages = {359-498},
	author = {Michaelsen, W.}
}
@article {304,
	title = {Miscellanea Ascidiologica},
	journal = {Mitteilungen. Zoologisches Museum in Berlin},
	volume = {10},
	year = {1922},
	pages = {299-323},
	author = {Hartmeyer, R.}
}
@article {254,
	title = {Tunicata. In Northern and Arctic invertebrates in the collection of the Swedish State Museum},
	journal = {Koninklijke Svenska Vetensk Academie Handlingar, part 1},
	volume = {1},
	number = {2},
	year = {1922},
	pages = {1-62},
	author = {Arnback, C.L.}
}
