Lars Bendix, Jacob Gradén, Anna Stĺhl:
A configuration management perspective on composing software product lines, pdf
Technical Report, Department of Computer Science, Lund University, Sweden, December 2009.

Abstract:
The high demand for more products has led industry in the direction of using software product lines. However, there are still many issues to be solved before software product lines can be handled and supported just as well as “normal” software development. We have obtained some results by applying a software configuration management perspective to a restricted set of problems from product lines and identified a number of interesting open issues in the intersection between product lines, composition and software configuration management.