GSM EFR based multi-rate codec family. - Janne Vainio; Hannu Mikkola; Kari Järvinen; Petri Haavisto (ICASSP, 1998)

Techniques for high-quality ACELP coding of wideband speech. - Bruno Bessette; Roch Lefebvre; Redwan Salami; Milan Jelinek; Janne Vainio; J. Rotola-Pukkila; Hannu Mikkola; Kari Järvinen (INTERSPEECH, 2001)

AMR wideband codec - leap in mobile communication voice quality. - J. Rotola-Pukkila; Janne Vainio; Hannu Mikkola; Kari Järvinen; Bruno Bessette; Roch Lefebvre; Redwan Salami; Milan Jelinek (INTERSPEECH, 2001)

The adaptive multirate wideband speech codec (AMR-WB). - Bruno Bessette; Redwan Salami; Roch Lefebvre; Milan Jelinek; J. Rotola-Pukkila; Janne Vainio; Hannu Mikkola; Kari Järvinen (IEEE Trans. Speech Audio Process., 2002)