@conference {vu2009synergies,
	title = {Synergies of different reputation systems: challenges and opportunities},
	booktitle = {2009 World Congress on Privacy, Security, Trust and the Management of e-Business},
	year = {2009},
	pages = {218{\textendash}226},
	publisher = {IEEE},
	organization = {IEEE},
	author = {Vu, Le-Hung and Papaioannou, Thanasis G and Aberer, Karl}
}
