@book {418,
	title = {European seagrasses: an introduction to monitoring and management},
	year = {2004},
	pages = {88},
	url = {http://www.seagrasses.org/handbook/european_seagrasses_high.pdf},
	author = {Borum, J. and Duarte, C.M. and Krause-Jensen, D. and Greve, T.M.}
}
