@article {836846,
	title = {Calcitic Microlenses as Part of the  Photoreceptor System in Brittlestars},
	journal = {Nature},
	volume = {412},
	year = {2001},
	pages = {819-822},
	author = {Aizenberg, J. and Tkachenko, A. and S. Weiner and L. Addadi and Hendler, G.}
}
