@phdthesis{publication-2008,
	author={Steinmann, Lukas},
	editor={Zweifel, Peter},
	faculty={Faculty of Economics, Business Administration and Information Technology},
	institution={University of Zurich},
	pages=139,
	title={Konsistenzprobleme der Data Envelopment Analysis in der empirischen Forschung},
	year=2002,
}