@article {6375,
	title = {Gulliver{\textquoteright}s further travels: the necessity and difficulty of a hierarchical theory of selection},
	journal = {Philosophical Transactions of the Royal Society of London Series B-Biological Sciences},
	volume = {353},
	year = {1998},
	note = {PDF},
	pages = {307-314},
	keywords = {allometry, hierarchy theory, macroevolution, punctuated equilibrium, scale, selection, speciation, species selection},
	author = {Gould, Stephen Jay}
}
