@article {1739,
	title = {Didemnidae (Ascidiacea) in the sublitoral zone of the Iturup Islands},
	journal = {Zoologicheskii Zhurnal},
	volume = {53},
	year = {1974},
	pages = {237-243},
	author = {Romanov, V.N.}
}
@article {1736,
	title = {Ascidians (Didemnidae) from the sublitoral zone of the Kurile and Commander Islands},
	journal = {Biologiya Morya},
	volume = {2},
	year = {1977},
	pages = {51-62},
	author = {Romanov, V.N.}
}
@article {1735,
	title = {Tunicates. Ascidians. Colonial ascidians of the family Didemnidae from the seas of the USSR and adjacent waters},
	journal = {Fauna of USSR. Supplement No. 138},
	volume = {1},
	year = {1989},
	pages = {1-224},
	author = {Romanov, V.N.}
}
