Hiroki Horita, Kozo Honda, Yuichi Sei, Hiroyuki Nakagawa, Yasuyuki Tahara, Akihiko Ohsuga,:Transformation Approach from KAOS Goal Models to BPMN Models Using Refinement Patterns,29th Annual ACM Symposium on Applied Computing, (SAC 2014),pp.1023-1024(2014/3)

Yutaka Yoshida, Kozo Honda, Yuichi Sei, Hiroyuki Nakagawa, Yasuyuki Tahara, Akihiko Ohsuga: Towards semi-automatic identification of functional requirements in legal texts for public administration, The 26th International Conference on Legal Knowledge and Information Systems (JURIX2013), pp.175-184, IOS Press (2013/12).