Xiaojiang Du Mohsen Guizani Yang Xiao Hsiao-Hwa Chen Defending DoS Attacks on Broadcast Authentication in Wireless Sensor Networks. 1653-1657 2008 ICC http://dx.doi.org/10.1109/ICC.2008.319 conf/icc/2008 db/conf/icc/icc2008.html#DuGXC08