@article {272,
	title = {Marsilea crenta C. Presl},
	year = {2013},
	url = {http://rmbr.nus.edu.sg/dna/organisms/details/589}
}
@article {266,
	title = {Marsilea crenta C. Presl},
	year = {2013},
	url = {http://rbg-web2.rbge.org.uk/thaiferns/factsheets/index.php?q=Marsilea_crenata.xml},
	author = {Stuart Lindsay and David Middleton}
}
@article {264,
	title = {Marsilea crenata },
	year = {2009},
	url = {http://species.wikimedia.org/wiki/File:Marsilea_crenataRHu2.JPG},
	author = {Meneerke bloem}
}
@article {159,
	title = {Marsilea crenata },
	year = {2013},
	url = {http://www.iucnredlist.org/details/168620/0},
	author = {Zhuang, X}
}
