Samer Al Moubayed Jonas Beskow Gabriel Skantze The furhat social companion talking head. 747-749 2013 INTERSPEECH https://www.isca-speech.org/archive/interspeech_2013/almoubayed13_interspeech.html conf/interspeech/2013 db/conf/interspeech/interspeech2013.html#MoubayedBS13