1. DeBaud, J., Schmid, K.: A Systematic Approach to Derive Scope of Software Product Lines. In: ICSE 1999, Los Angeles CA, May 1999, pp. 34–43 (1999)
2. Kobayashi, H., Kawata, Y., Maekawa, M., Kawasaki, A., Yabu, A., Onogawa, K.: Modeling External Objects of Process Control Systems in Executable Specifications. Journal of Information Processing Society of Japan 35(7), 1402–1409 (1994) (in Japanese)
3. Martin, J.: Rapid Application Development. Macmillian Publishing Company (1991)
4. Matsumoto, M., et al.: Specifications reuse process modeling and CASE study-based Evaluations. In: COMPSAC 1991, Proc. of the 15th annual international computer software & applications (1991)
5. Matsumoto, M.: Modeling and Reuse of Software. Kyoritsu (1996) (in Japanese)