Tourwé, T., Brichau, J., Gybels, K. On the Existence of the AOSD-Evolution Paradox. AOSD 2003 Workshop on Software-engineering Properties of Languages for Aspect Technologies, Boston, USA, 2003.
There's another version of this paper in Filman, Elrad, Clarke and Aksit, Aspect-Oriented Software Development, Addison-Wesley Professional, 2004, on SPL shelves.