1. Auer, M., Trendowicz, A., Graser, B., Haunschmid, E., Biffl, S.: Optimal project feature weights in analogy-based cost estimation: improvement and limitations. IEEE Transactions on Software Engineering 32(2), 83–92 (2006)
2. Boehm, B.W., Abts, C., Brown, A.W., Chulani, S., Clark, B.K., Horowitz, E., Madachy, R., Refer, D., Steece, B.: Software Cost Estimation with COCOMO II. Prentice-Hall, Englewood Cliffs (2000)
3. Boehm, B.W.: Software Engineering Economics. Prentice-Hall, Englewood Cliffs (1981)
4. Briand, L., Basili, V., Thomas, W.: A Pattern Recognition Approach for Software Engineering Data Analysis. IEEE Transactions on Software Engineering 18(11), 931–942 (1992)
5. Chatterjee, S., Hadi, A.S., Price, B.: Regression Analysis by Example, 3rd edn. Wiley, Chichester (1999)