@article {olmstead_comparing_2009,
	title = {Comparing Price and Nonprice Approaches to Urban Water Conservation},
	journal = {Water Resources Research},
	volume = {45},
	year = {2009},
	note = {A-58},
	pages = {10},
	doi = {200910.1029/2008WR007227},
	url = {http://onlinelibrary.wiley.com/doi/10.1029/2008WR007227/full},
	author = {Olmstead, Sheila M. and Robert N. Stavins}
}
