@unpublished{publication-5343,
	author={Ledoit, Olivier and Péché, Sandrine},
	institution={University of Zurich},
	issn={1424-0459},
	number={No. 407},
	series={Working paper series / Institute for Empirical Research in Economics},
	title={Eigenvectors of some large sample covariance matrices ensembles},
	year=2009,
}