协同环境下基于角色的细粒度委托限制框架
刘伟,蔡嘉勇,贺也平
Role-based fine-grained delegation constraint framework in collaborative environments
Wei LIU,Jia-yong CAI,Ye-ping HE
通信学报 . 2008, (1): 83 -91 .  DOI: 1000-436X(2008)01-0083-09