Hideki Sato Sakae Funahashi Tatsuya Hayashi A framework of object migration in multiaspect object-oriented database. 81-91 2000 31 Systems and Computers in Japan 1 http://dx.doi.org/10.1002/(SICI)1520-684X(200001)31:1<81::AID-SCJ9>3.0.CO;2-N db/journals/scjapan/scjapan31.html#SatoFH00