@article {614,
	title = {Tentative Outline for Inventory of Submerged Aquatic Vascular Plants: Ruppia maritima L. (ditch-grass)},
	journal = {Chesapeake Science},
	volume = {13},
	year = {1972},
	pages = {S172-S174},
	doi = {10.2307/1350676},
	author = {Anderson, R.A.}
}
@article {270,
	title = {Range extension of Halophila stipulacea (Hydrocharitaceae) in the Mediterranean},
	journal = {Blumea},
	volume = {20},
	year = {1972},
	pages = {154},
	author = {denHartog, C.}
}
@article {79,
	title = {The sea-grasses of Brazil},
	journal = {Acta Botanica Neerlandica},
	volume = {21},
	year = {1972},
	pages = {512-516},
	author = {denHartog, C.}
}
