@unpublished{publication-3646,
	author={Backes-Gellner, Uschi and Veen, S},
	doi={10.2139/ssrn.1346895},
	institution={University of Zurich},
	number=78,
	pages=35,
	series={ISU Working Paper},
	title={The impact of aging and age diversity on company performance},
	year=2009,
}