@misc {IOPORT.70512927,
    author       = {Duan, Shanshan and Cao, Zhenfu and Zhou, Yuan},
    title        = {Secure delegation-by-warrant ID-based proxy signcryption scheme},
    howpublished = {CIS (2), 445-450 (2005).},
    year         = {2005},
    doi          = {10.1007/11596981_65},
    identifier   = {70512927},
}