@article {67,
	title = {Scale and species richness: towards a general, hierarchical theory of species diversity},
	journal = {Journal of BiogeographyJournal of Biogeography},
	volume = {28},
	number = {4},
	year = {2001},
	pages = {453-470},
	isbn = {1365-2699},
	author = {Whittaker, Robert J and Willis, Katherine J and Field, Richard}
}
