1. GPP (2005) Recommendation ETSI TS 126 290. Extended adaptive multi-rate-wideband (AMR-WB+) codec
2. GPP (2014) Recommendation TS 26.441. Codec for enhanced voice services (EVS)
3. MPEG (2011) Recommendation ISO/IEC 23003-3, information technology–MPEG audio technologies—part 3: unified speech and audio coding
4. Jérémie L, Roch L, Guy R (2007) An improved low complexity AMR-WB+ encoder using neural networks for mode selection. In: 123rd convention of audio engineering society
5. Jong-Kyu K, Nam-Soo K (2008) Improved frame mode selection for AMR-WB+ based on decision tree. IEICE Trans INF Syst E 91-D(6):1830–1833