@unpublished{publication-5653,
	author={Luechinger, Bruno S and Frey, Simon and Stutzer, Alois},
	institution={University of Zurich},
	issn={1424-0459},
	number={No. 184},
	series={Working paper series / Institute for Empirical Research in Economics},
	title={Valuing Public Goods: The Life Satisfaction Approach},
	year=2004,
}