@article {7743,
	title = {Turnover-pulses, the Red Queen, and related topics},
	journal = {American Journal of Science},
	volume = {293-A},
	year = {1993},
	pages = {418-452},
	keywords = {ecology, evolution, extinction, fossil record, fossils, paleontology, speciation},
	author = {Vrba, Elisabeth S.}
}
