@article {130,
	title = {The ascidians collected by the United States Fisheries Bureau Steamer Albatross on the coast of California during the Summer of 1904},
	journal = {University of California Publications in Zoology},
	volume = {4(1)},
	year = {1907},
	pages = {1-52},
	chapter = {1},
	author = {Ritter, W.E.}
}
@article {257,
	title = {Die ascidien der russichen Polar expedition 1900-1903},
	journal = {Zoologischer Anzeiger},
	volume = {31},
	number = {17-18},
	year = {1907},
	pages = {521-525},
	author = {Redikorzev, V.}
}
@inbook {192,
	title = {Tunicaten.},
	booktitle = {Ergebnisse der Hamburger Magalhaensischen Sammelreise},
	volume = {8},
	year = {1907},
	pages = {1-84},
	publisher = {L. Friederichsen \& Co.},
	organization = {L. Friederichsen \& Co.},
	edition = {5},
	address = {Hamburg},
	author = {Michaelsen, W.}
}
