Xiaohua Jia Jiannong Cao Weijia Jia Real-time multicast routing with optimal network cost. 49- 1996 conf/rtcsa/1996 RTCSA http://csdl.computer.org/comp/proceedings/rtcsa/1996/7626/00/76260049abs.htm db/conf/rtcsa/rtcsa1996.html#JiaCJ96