国際会議
[1] Kimiharu Ohkura, Yoji Onishi, Shinji Kawaguchi, Masao Ohira, Hajimu Iida, and Ken-ichi Matsumoto, "A Method for Measuring Oss Projects Activity Based on Cluster Analysis of Email Threads," In The Fourth International Conference on Open Source Systems (OSS2008), September 2008.
[2] Yasutaka Kamei, Shinsuke Matsumoto, Hirotaka Maeshima, Yoji Onishi, Masao Ohira, and Ken-ichi Matsumoto, "Analysis of Coordination between Developers and Users in the Apache Community," In The Fourth International Conference on Open Source Systems (OSS2008), pages 81--92, September 2008.