@article{MRM11,
  author 		= {Leonardo A. Martucci and Sebastian Ries and Max M\"{u}hlh\"{a}user},
  title 		= {{Sybil-Free Pseudonyms, Privacy and Trust: Identity Management in the Internet of Services}},
  journal 	= {Journal of Information Processing},
  volume 		= {19},
  month			= {Jul},
  year 			= {2011},
  issn		 	= {1882-6652},
  pages 		= {317--331},
  publisher = {Information Processing Society of Japan},
  address 	= {Tokyo, Japan}
}