@unpublished{publication-5522,
	author={Feld, Lars P and Frey, Bruno S},
	institution={University of Zurich},
	issn={1424-0459},
	number={No. 284},
	series={Working paper series / Institute for Empirical Research in Economics},
	title={Tax Evasion in Switzerland: The Roles of Deterrence and Tax Morale},
	year=2006,
}