@article {7905,
	title = {A mathematical theory of evolution, based on the conclusions of Dr. J. C. Willis},
	journal = {Philosophical Transactions of the Royal Society of London Series B-Biological Sciences},
	volume = {213},
	year = {1924},
	note = {do not have},
	pages = {21{\textendash}87},
	keywords = {evolution},
	author = {Yule, G. U.}
}
