国際会議
[1] Shoji Fujita, Masao Ohira, Akinori Ihara, and Ken-ichi Matsumoto, "An Analysis of Committers Toward Improving the Patch Review Process in Oss Development," In Supplementary Proceedings of the 21st IEEE International Symposium on Software Reliability Engineering (ISSRE2010), pages 369--374, November 2010.
[2] Masao Ohira, Kiwako Koyama, Akinori Ihara, Shinsuke Matsumoto, Yasutaka Kamei, and Ken-ichi Matsumoto, "A Time-Lag Analysis Toward Improving the Efficiency of Communications among Oss Developers," In Proceedings of The 3rd International Workshop on Knowledge Collaboration in Software Development (KCSD2009), pages 49--62, November 2009.
[3] Akinori Ihara, Masao Ohira, and Ken-ichi Matsumoto, "An Analysis Method for Improving a Bug Modification Process in Open Dource," In In 10th international workshop on principles of software evolution (IWPSE09), pages 135--143, August 2009.
著書
[1] Masao Ohira, Kiwako Koyama, Akinori Ihara, Shinsuke Matsumoto, Yasutaka Kamei, and Ken-ichi Matsumoto, A Time-Lag Analysis for Improving Communication among Oss Developers, Springer-Verlag, 2010.