1. Boehm, B.W.: Software Engineering Economics. Prentice Hall PTR (1981)
2. Boehm, B., et al.: Software Cost Estimation with COCOMO II. Upper Saddle River, NJ, Prentice-Hall (2000)
3. Bosch, J.: Examining the need for change in strategy, innovation methods and R&D practices. In: Keynote, the 24th INCOSE International Symposium, Las Vegas, NV (2014)
4. Clements, P.C.: Product line engineering comes to the industrial mainstream. In: Proceedings of the 25th Annual INCOSE International Symposium. Seattle, WA (2015)
5. De Weck, O., Suh, E.S., Chang, D.: Product family and platform portfolio optimization. In: Proceedings of the ASME Design Engineering Technical Conferences – Design Automation (2003)