@unpublished{publication-5549,
	author={Afshartous, David and Wolf, Michael},
	institution={University of Zurich},
	issn={1424-0459},
	number={No. 260},
	series={Working paper series / Institute for Empirical Research in Economics},
	title={Avoiding Data Snooping in Multilevel and Mixed Effects Models},
	year=2005,
}