1. A practical investigation into the echo control requirements of a digital mobile radio system;Symington,1986
2. Selection of a speech codec for the GSM system;Natvig,1986
3. A 16 kbit/s speech codec for four channel 64 kbit/s transmission telecommunications networks;Hanes;British Telecom Technology Journal,1985
4. Third generation DSPs put advanced functions on chip;Cushman;EDN 11,1985
5. DSP: A technology in search of applications;Marrin;Special Report on Digital Signal Processing, Computer Design,1986