Naoyuki Kubota Toshiyuki Shimizu Minoru Abe Joint Attention Between a Human Being and a Partner Robot Based on Computational Intelligence. 1274-1280 2007 11 JACIII 10 http://www.fujipress.jp/finder/xslt.php?mode=present&inputfile=JACII001100100013.xml db/journals/jaciii/jaciii11.html#KubotaSA07