@article {39246,
	title = {Density-dependent effects and the regulation of Crucian populations in single-species ponds},
	volume = {75},
	year = {1994},
	pages = {824-834},
	publisher = {Ecology},
	url = {http://www.jstor.org/sici?sici=0012-9658(199206)73\%3A3\%3C951\%3APARMSP\%3E2.0.CO\%3B2-9},
	author = {Tonn, William M. and Holopainen, Ismo J. and Paszkowski, Cynthia A.}
}
