@inbook {ARC22606,
	title = {Bottom-up control},
	booktitle = {Encyclopedia of Theoretical Ecology},
	volume = {4},
	year = {2012},
	pages = {106-112},
	publisher = {University of California Press},
	organization = {University of California Press},
	isbn = {0520269659},
	author = {John C. Moore and Peter C. De Ruiter},
	editor = {A. Hastings and L. J. Gross}
}
@inbook {ARC22194,
	title = {Top-down control},
	booktitle = {Encyclopedia of Theoretical Ecology},
	volume = {4},
	year = {2012},
	pages = {739-744},
	publisher = {University of California Press},
	organization = {University of California Press},
	isbn = {0520269659},
	author = {Peter C. De Ruiter and John C. Moore},
	editor = {A. Hastings and L. J. Gross}
}
