@book {466,
	title = {Pondweeds of Great Britain and Ireland},
	series = {BSBI Handbook},
	volume = {8},
	year = {1995},
	pages = {350},
	publisher = {Botanical Society of the British Isles},
	organization = {Botanical Society of the British Isles},
	address = {London},
	author = {Preston, C.D.}
}
@article {41,
	title = {Flowering time as influenced by nitrate fertilisation in Ruppia drepanensis Tineo},
	journal = {Aquatic Botany},
	volume = {52},
	year = {1995},
	pages = {45-58},
	doi = {10.1016/0304-3770(95)00486-J},
	author = {Santamar{\'\i}a, L. and Hootsmans, M.J.M. and van Vierssen, W.}
}
@article {40,
	title = {How to survive darkness? Photosynthetic and other solutions provided by three submerged aquatic macrophytes (Potamogeton pectinatus L., Ruppia drepanensis Tineo and Zostera noltii Hornem.)},
	journal = {Water Science and Technology},
	volume = {32},
	year = {1995},
	pages = {49-51},
	chapter = {4},
	doi = {10.2166/wst.1995.0163},
	author = {Hootsmans, M.J.M. and Santamar{\'\i}a, L. and Vermaat, J.E.}
}
