@techreport{a3tr, author = {Sherr, Micah and Mao, Andrew and Marczak, William R. and Zhou, Wenchao and Loo, Boon Thau}, institution = {University of Pennsylvania}, note = {Available at {\url{http://a3.cis.upenn.edu/a3tr.pdf}}}, title = {{A3: An Extensible Platform for Application-Aware Anonymity}}, year = {2009} }