TY - Front. Comput. Sci. A1 - Li LIN,Jian HU,Jianbiao ZHANG T1 - Packet: a privacy-aware access control policy composition method for services composition in cloud environments Y1 - 2016-10-11 JF - Frontiers of Computer Science JO - Front. Comput. Sci. SP - 1142 EP - 1157 VL - 10 IS - 6 UR - https://journal.hep.com.cn/fcs N1 - 10.1007/s11704-016-5503-9 ER -