Byung Sik Yoon Hyung Jung Kim Man Ho Park Deok Gu Gee Song In Choi The Implementation of Narrowband and Wideband AMR Speech Coder for 3GPP Based IMT-2000 System. 41-48 2003 conf/csreaESA/2003 Embedded Systems and Applications db/conf/csreaESA/csreaESA2003.html#YoonKPGC03