Pit a pat: design for support learning exhibitions. - Takako Yamaguchi; Hideki Kaji; Fusako Kusunoki (AMT, 2005)

Personal location based services on place-enhanced blog. - Hideki Kaji; Masatoshi Arikawa (ACM Multimedia, 2008)

Location-Aware Reminders with Personal Life Content on Place-Enhanced Blogs. - Hideki Kaji; Masatoshi Arikawa (W2GIS, 2008)

Blog Based Personal LBS. - Hideki Kaji; Masatoshi Arikawa (HCI (25), 2013)