Jean-Pierre Adoul, Claude Lamblin, Alain Le Guyader. Baseband speech coding at 2400 bps using "Spherical vector quantization". In IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP '84, San Diego, California, USA, March 19-21, 1984. pages 45-48, IEEE, 1984. [doi]
Abstract is missing.