@unpublished{publication-5298,
	author={Brunner, Christoph and Goeree, Jacob K and Holt, Charles A and Ledyard, John O},
	institution={University of Zurich},
	issn={1424-0459},
	number={No. 431},
	series={Working paper series / Institute for Empirical Research in Economics},
	title={An Experimental Test of Flexible Combinatorial Spectrum Auction Formats},
	year=2009,
}