Chi-Kin Chau Jon Crowcroft Kang-Won Lee Starsky H. Y. Wong How to Enable Policy-Based Interactions in Dynamic Wireless Networks? 219-222 2008 POLICY http://doi.ieeecomputersociety.org/10.1109/POLICY.2008.11 conf/policy/2008 db/conf/policy/policy2008.html#ChauCLW08