@unpublished{publication-5170,
	author={Ledoit, Olivier and Lotz, Sébastien},
	institution={University of Zurich},
	issn={1664-7041},
	number={No. 24},
	series={Working paper series / Department of Economics},
	title={The Coexistence of Commodity Money and Fiat Money},
	year=2011,
}