@article {4698,
	title = {Comparative life cycle and growth of two freshwater gastropod species, Planorbarius corneus (L.) and Planorbis planorbis (L.)},
	journal = {Malacologia},
	volume = {37},
	year = {1995},
	pages = {53-68},
	author = {Katherine Costil and Daguzan, Jacques}
}
