@phdthesis{publication-12970,
	author={H{\"a}uschen, Harald},
	editor={Bauknecht, Kurt and Teufel, Stephanie},
	faculty={Faculty of Economics, Business Administration and Information Technology},
	institution={University of Zurich},
	pages=268,
	title={Bausteine f{\"u}r einen sicheren elektronischen Handel},
	year=2004,
}