Shinpei Hayashi Motoshi Saeki Masahito Kurihara Supporting Refactoring Activities Using Histories of Program Modification. 1403-1412 2006 89-D IEICE Transactions 4 http://dx.doi.org/10.1093/ietisy/e89-d.4.1403 db/journals/ieicet/ieicet89d.html#HayashiSK06