@article{liu14tdsc, author = {Wen Ming Liu, Lingyu Wang, Pengsu Cheng, Kui Ren, Shunzhi Zhu and Mourad Debbabi}, title = {PPTP: Privacy-Preserving Traffic Padding in Web-Based Applications}, journal ={IEEE Transactions on Dependable and Secure Computing}, volume = {11}, number = {6}, issn = {1545-5971}, year = {2014}, pages = {538-552}, publisher = {IEEE Computer Society}, address = {Los Alamitos, CA, USA} }