@article {56,
	title = {An attempt to distribute the species of Olive (Oliva, Lamarck) into natural groups, and to define some of the species},
	journal = {Proceedings of the Zoological Society of London},
	volume = {26},
	year = {1858},
	pages = {38-57},
	url = {http://www.biodiversitylibrary.org/bibliography/44963},
	author = {Gray, J.E.}
}
