@inproceedings{quercia07trullo,
 author = {Daniele Quercia and Stephen Hailes and Licia Capra},
 title = {{TRULLO - local trust bootstrapping for ubiquitous devices}}, 
 booktitle = {Proceedings of the $4^{th}$ IEEE  International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services (Mobiquitous)}
 year = {2007},
 month={August},
 pages = {},
 address = {Philadelphia, US},
 Theme   = {Security Issues in Mobile Computing},
 URL       = {http://www.cs.ucl.ac.uk/staff/d.quercia/publications/quercia07trullo.pdf},
 }