@article {89,
	title = {Paedomorphosis, Aristotle{\textquoteright}s lantern, and the origin of the sand dollars (Echinodermata: Clypeasteroidea)},
	journal = {Paleobiology},
	volume = {16},
	number = {1},
	year = {1990},
	pages = {25-48},
	author = {Mooi, R.}
}
@article {6,
	title = {Variations in the reproductive cycle of <i>Acrocnida</i><i>brachiata</i> (Echinodermata: Ophiuroidea) according to environment in the Bay of Douarnenez (Brittany)},
	journal = {Journal of the marine biological Association U.K.},
	volume = {70},
	year = {1990},
	pages = {57-66},
	author = {Bourgoin, A. and Guillou, M.}
}
