Andreas Kießling Ralf Kompe Anton Batliner Heinrich Niemann Elmar Nöth Automatic labeling of phrase accents in German. 1994 ICSLP http://www.isca-speech.org/archive/icslp_1994/i94_0115.html conf/interspeech/1994 db/conf/interspeech/icslp1994.html#KiesslingKBNN94