@article {36073,
	title = {Predation{\textquoteright}s role in the cyclic fluctuations of ruffed grouse},
	volume = {19},
	year = {1988},
	pages = {699-732},
	publisher = {Acta Congressus Internationalis Ornithogici},
	author = {Keith, L. B. and Rusch, D. H.}
}
