1. Armitage, J.W., Kellner, M.I.: A Conceptual Schema for Process Definitions and Models. In: Perry, D.E. (ed.) Proceedings of the Third International Conference on the Software Process, pp. 153–165. IEEE Computer Society Press, Los Alamitos (1994)
2. Basili, V.R., Caldiera, G., Rombach, H.D.: Goal Question Metric Paradigm. In: Marciniak, J.J. (ed.) Encyclopedia of Software Engineering, vol. 1, pp. 528–532. John Wiley & Sons, Chichester (1994)
3. Balci, O.: Principles and Techniques of Simulation Validation, Verification, and Testing. In: Alexopoulos, C., Kang, K., Lilegdon, W.R., Goldsman, D. (eds.) Proceedings of the 1995 Winter Simulation Conference, pp. 147–154 (1995)
4. Lecture Notes in Computer Science;U. Becker-Kornstaedt,2001
5. Cugola, G., Ghezzi, C.: Software Process: a Retrospective and a Path to the Future. Software Process–Improvement and Practice 4(3), 101–123 (1998)