Title	New Authentication Mechanism for Vertical Handovers between IEEE 802.16e and 3G Wireless Networks
Author	Pyung-Soo Kim, Yong-Jin Kim
Citation	Vol. 6  No. 9  pp. 138-143
Keywords	Authentication, Vertical handover, IEEE 802.16e, 3G.

Title	Recognizing Handover Situation for Vertical Handovers using Mobile IPv6 Signaling
Author	Pyung-Soo Kim, Yong-Jin Kim
Citation	Vol. 7  No. 4  pp. 173-178
Keywords	Mobile IPv6, Vertical Handover, Care-of Address, Handover Situation, Congestion Control.