@article {282,
	title = {Isopleths and Isotypes},
	journal = {Taxon},
	volume = {18},
	number = {3},
	year = {1969},
	pages = {284-285},
	isbn = {00400262},
	url = {http://www.jstor.org/stable/1218829 },
	author = {Exell, A. W.}
}
