Ticket-Based Secure Delegation Service Supporting Multiple Domain Models. - Kyung-Ah Chang; Tae-Seung Lee; Bang-Hung Chun; Tai-Yun Kim (PRDC, 2001)

License administration mechanism for multiple devices in a domain. - Byung-Rae Lee; Kyung-Ah Chang; Kyung-Im Jung; Bang-Hung Chun (Parallel and Distributed Computing and Networks, 2004)