@article{DBLP:journals/jcst/ZhuHAWW11,
  author    = {Yan Zhu and
               Hongxin Hu and
               Gail-Joon Ahn and
               Huaixi Wang and
               Shan-Biao Wang},
  title     = {Provably Secure Role-Based Encryption with Revocation Mechanism},
  journal   = {J. Comput. Sci. Technol.},
  volume    = {26},
  number    = {4},
  year      = {2011},
  pages     = {697-710},
  ee        = {http://dx.doi.org/10.1007/s11390-011-1169-9},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}