@article {698,
	title = {Some additional notes on the cytotaxonomy of Ruppia taxa in Western Europe},
	journal = {Aquatic Botany},
	volume = {11},
	year = {1981},
	pages = {297-301},
	doi = {10.1016/0304-3770(81)90067-X},
	author = {van Vierssen, W. and Van Wijck, R.J. and van der Zee, J.R.}
}
@inbook {47,
	title = {The ecology of halophytes in the south-east of South Australia},
	booktitle = {Salt Lakes. Developments in Hydrobiology},
	volume = {5},
	year = {1981},
	pages = {23-32},
	publisher = {Springer},
	organization = {Springer},
	edition = {Williams W.D. (ed.)},
	chapter = {3},
	address = {Dordrecht},
	doi = {10.1007/BF00048703},
	author = {Brock, M.A.}
}
@mastersthesis {415,
	title = {The population biology of two intertidal seagrasses, Zostera japonica and Ruppia maritima, at Roberts Bank, British Columbia},
	year = {1981},
	pages = {205},
	school = {University of British Columbia},
	type = {MSc thesis},
	author = {Bigley, R.E.}
}
@article {371,
	title = {De generis Ruppia L. (Ruppiaceae) specie ex Oriente Extremo pro flora URSS nova},
	journal = {Novitates Systematicae Plantarum Vascularium},
	volume = {18},
	year = {1981},
	pages = {58-59},
	author = {Tzvelev, N.}
}
@article {47,
	title = {Accumulation of proline in a submerged aquatic halophyte, Ruppia L.},
	journal = {Oecologia},
	volume = {51},
	year = {1981},
	pages = {217-219},
	doi = {10.1007/BF00540604},
	author = {Brock, M.A.}
}
