@article {Foster1984,
	title = {The species concept in fossil hermatypic corals: a statistical approach},
	journal = {Palaeontographica Americana},
	volume = {54},
	year = {1984},
	pages = {58{\textendash}69},
	url = {http://archive.org/details/palaeontographic541984pale},
	author = {Foster, Ann Budd}
}
