Kohji Dohsaka Ryota Asai Ryuichiro Higashinaka Yasuhiro Minami Eisaku Maeda Effects of Conversational Agents on Human Communication in Thought-Evoking Multi-Party Dialogues. 217-224 2009 SIGDIAL Conference http://www.aclweb.org/anthology/W09-3932 conf/sigdial/2009 db/conf/sigdial/sigdial2009.html#DohsakaAHMM09