@article {32463,
	title = {Effectiveness of three waterfowl deterrents on natural and polluted ponds},
	volume = {44},
	year = {1980},
	pages = {145-154},
	publisher = {Journal of Wildlife Management},
	url = {http://www.jstor.org/stable/3808423},
	author = {Boag, D. A. and Lewin, V.}
}
