Martha Larson Roeland Ordelman Franciska de Jong Wessel Kraaij Joachim Köhler Searching multimedia content with a spontaneous conversational speech track. 1159-1160 2009 ACM Multimedia http://doi.acm.org/10.1145/1631272.1631549 conf/mm/2009 db/conf/mm/mm2009.html#LarsonOJKK09