Ayano Terakawa, Teruhisa Hochin, Hiroki Nomiya. Integrated Usage of Heterogeneous Databases for Novice Users. In IIAI 3rd International Congress on Advanced Applied Informatics, IIAI-AAI 2014, Kokura Kita-ku, Japan, August 31 - Sept. 4, 2014. pages 705-710, IEEE, 2014. [doi]