@unpublished{publication-5341,
	author={Boes, Stefan and N{\"u}esch, Stephan},
	institution={University of Zurich},
	number={No. 906},
	series={Working paper series / Socioeconomic Institute},
	title={New Flight Regimes and Exposure to Aircraft Noise: Identifying Housing Price Effects Using a Ratio-of-Ratios Approach},
	year=2009,
}