@article {7742,
	title = {Environment and evolution: alternative causes of the temporal distribution of evolutionary events},
	journal = {South African Journal of Science},
	volume = {81},
	year = {1985},
	note = {DO NOT HAVE},
	pages = {229{\textendash}236},
	keywords = {evolution, paleontology, turnover pulse},
	author = {Vrba, Elisabeth S.}
}
