Bogdan VlasenkoBjörn W. SchullerAndreas WendemuthGerhard RigollCombining frame and turn-level information for robust recognition of emotions within speech.2249-22522007INTERSPEECHhttps://doi.org/10.21437/Interspeech.2007-611conf/interspeech/2007db/conf/interspeech/interspeech2007.html#VlasenkoSWR07