4W.Fenner. RFC2236: Internet Group Management Protocol, Version 2. IETF, Nov 1997 .
5Chunglae Cho, Intak Han, Yongil Jun. Improvement of Channel Zapping Time in IPTV Services Using the Adjacent Groups Join-Leave Method. Advanced Communication Technology, 2004. The 6th International Conference on Volume 2, 2004 Page(s):971-975