| 2005 | ||
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| 4 | EE | Tetsushi Morita, Mitsuhiro Yuitou, Tetsuo Hidaka, Yutaka Hirakawa: Visualization Methods Using Three-Dimensional Space for Auctions. SAINT Workshops 2005: 396-399 |
| 2004 | ||
| 3 | Tetsuo Hidaka, Tetsushi Morita, Tomohiko Nakamura, Morihide Oinuma, Yutaka Hirakawa: Improvement of Visual Customer Relationship Management System. IRI 2004: 332-337 | |
| 1990 | ||
| 2 | EE | Yutaka Hirakawa: Comments on ``On the Projection Method for Protocol Verification''. IEEE Trans. Software Eng. 16(3): 370-371 (1990) |
| 1989 | ||
| 1 | Yutaka Hirakawa, Shuichi Uchida, Michihiro Monden: Hypermedia as a Communication Design Software Support. UK Hypertext 1989: 244-251 | |
| 1 | Tetsuo Hidaka | [3] [4] |
| 2 | Michihiro Monden | [1] |
| 3 | Tetsushi Morita | [3] [4] |
| 4 | Tomohiko Nakamura | [3] |
| 5 | Morihide Oinuma | [3] |
| 6 | Shuichi Uchida | [1] |
| 7 | Mitsuhiro Yuitou | [4] |