Object-Oriented Database management System for Process Control Systems: Development and Evaluation. - Ryuji Wakizono; Toshikazu Kawamura; Takehiko Tsuchiya; Takahiro Hatanaka; Tatsuji Tanaka (SAC, 1999)

Method for Countering Social Bookmarking Pollution Using User Similarities. - Takahiro Hatanaka; Hiroyuki Hisamatsu (NDT (1), 2010)

Performance Evaluation of a Countering Method to Social Bookmarking Pollution Based on Degree of Bookmark Similarity. - Hiroyuki Hisamatsu; Takahiro Hatanaka (ITNG, 2012)