Katsuyuki Harada Noriyuki Matsuda Hirokazu Miura Hirokazu Taki Satoshi Hori Norihiro Abe Advice Recording Method for a Lesson with Computers. 181-187 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3214&spage=181 2004 conf/kes/2004-2 KES db/conf/kes/kes2004-2.html#HaradaMMTHA04