@ARTICLE{6574666, author={Li, Ming and Yu, Shucheng and Ren, Kui and Lou, Wenjing and Hou, Y. Thomas}, journal={IEEE Network}, title={Toward privacy-assured and searchable cloud data storage services}, year={2013}, volume={27}, number={4}, pages={56-62}, doi={10.1109/MNET.2013.6574666}}