@inproceedings{quercia07lightweight,
 author = {Daniele Quercia and Stephen Hailes and Licia Capra},
 title = {{Lightweight Distributed Trust Propagation}}, 
 booktitle = {Proceedings of the $7^{th}$ IEEE  International Conference on Data Mining}
 year = {2007},
 month={October},
 pages = {},
 address = {Omaha, US},
 Theme   = {Security Issues in Mobile Computing},
 URL       = {http://www.cs.ucl.ac.uk/staff/d.quercia/publications/quercia07lightweight.pdf},
 }