1. Matsuka H. and Uno S. (1979) Canonical geometric modeling for computer aided design. Data Base Techniques for Pictorial Applications, Lecture Notes in Computer Science 81, Springer-Verlag, June, Florence.
2. Matsuka H. and Uno S. (1980a) An application of advanced-integrated designer’s activity system, Proc. of Man-Machine communication in CAD/ CAM, IFIP Working Conf., October, Japan.
3. Matsuka H. (1980b) An application of an A-IDAS system to civil engineering plan and design. Quarterly Column, No. 77, Nippon Steel Corp. July, Japan (in Japanese).
4. Matsuka H., Sugimoto K. and Udo M. (1981) Geo-socio data processing system, IFIP Working Conf. on ESAM, September, Italy.
5. Uno S. and Matsuka H. (1979) A general purpose graphic system for computer aided design. Computer Graphics, Vol. 13, No. 2, pp 25–32, August, USA.