Shinya Takahashi Tsuyoshi Morimoto Sakashi Maeda Naoyuki Tsuruta Dialogue Experiment for Elderly People in Home Health Care System. 418-423 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2807&spage=418 2003 conf/tsd/2003 TSD db/conf/tsd/tsd2003.html#TakahashiMMT03