A candidate proposal for a 3GPP adaptive multi-rate wideband speech codec. - Christoph Erdmann; Peter Vary; Kyrill A. Fischer; Wen Xu; Matthias Marke; Tim Fingscheidt; Imre Varga; Markus Kaindl; Catherine Quinquis; Balázs Kövesi; Dominique Massaloux (ICASSP, 2001)

Joint source-channel decoding approaches applied in adaptive multirate (AMR) speech transmission. - Wen Xu; Matthias Marke (VTC Fall, 2001)

Using insertion convolutional code for speech transmission over GERAN 8PSK voice bearers. - Wen Xu; Matthias Marke (PIMRC, 2002)

On determining soft output of the cellular text telephone modem (CTM) demodulator. - Wen Xu; Matthias Marke (ICASSP (2), 2003)