@unpublished{publication-5535,
	author={Romano, Joseph P and Wolf, Michael},
	institution={University of Zurich},
	issn={1424-0459},
	number={No. 273},
	series={Working paper series / Institute for Empirical Research in Economics},
	title={Improved Nonparametric Confidence Intervals in Time Series Regressions},
	year=2006,
}