@conference{alexandra1,
  title = "LAG 2.0: Refining a reusable Adaptation Language and Improving on its Authoring",
  author = "A. I. Cristea and D. Smits and J. Bevan and M. Hendrix",
  year = 2009,
  booktitle = "proceedings of Fourth European Conference on Technology Enhanced Learning ECTEL 2009",
  publisher = "IEEE",
  url = "files/ectel-LAG20.pdf",
  keywords = "GRAPPLE project and Published during PhD at Warwick",
  series = "Proc. of 9th IEEE International Conference on Advanced Learning Technologies ICALT 2009",
  doi = "10.1007/978-3-642-04636-0_4"
}