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	number = {1},
	year = {2006},
	note = {PDF},
	pages = {1-19},
	keywords = {communities, extinction, food webs, mass extinction, network, paleontology},
	author = {Roopnarine, Peter D.}
}
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	journal = {Proceedings of the Royal Society of London. Series B},
	volume = {274},
	year = {2007},
	note = {PDF},
	pages = {2077{\textendash}2086},
	keywords = {communities, extinction, food webs, mass extinction, network, paleontology, permian},
	author = {Roopnarine, Peter D. and Angielczyk, Kenneth D. and Wang, Steve C. and Hertog, Rachel}
}
@article {6831,
	title = {Fluctuations of animal populations and a measure of community stability},
	journal = {Ecology},
	volume = {36},
	number = {3},
	year = {1955},
	pages = {533-536},
	keywords = {communities, ecology, network, population biology, stability, stasis},
	author = {MacArthur, Robert}
}
