@INPROCEEDINGS{benavides08b-splc,
  author = {A.~Hubaux and P.~Heymans and D.~Benavides},
  title = {Variability Modelling Challenges from the Trenches of an Open Source Product Line Re-Engineering Project },
  booktitle = {Proceedings of the Sofware Product Line Conference},
  year = {2008},
}