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	chapter = {498-513},
	author = {K.M. Pryer and D.J. Hearn}
}
@article {264,
	title = {Marsilea crenata },
	year = {2009},
	url = {http://species.wikimedia.org/wiki/File:Marsilea_crenataRHu2.JPG},
	author = {Meneerke bloem}
}
@article {199,
	title = {References },
	year = {2009}
}
