Security and Privacy in Ad-Hoc and Sensor Networks : Third European Workshop, ESAS 2006, Hamburg, Germany, September 20-21, 2006, Revised Selected Papers - Buttyan, Levente (Herausgeber); Gligor, Virgil (Herausgeber); Westhoff, Dirk (Herausgeber) (Computer Communication Networks and Telecommunications, 2006)