@conference{hendrix4,
  author = "M. Hendrix and A. I. Cristea",
  year = 2008,
  title = "Meta-Levels of Adaptation in Education",
  booktitle = "Proc. of the Computers and Advanced Technology in Education 2008",
  publisher = "IASTED",
  keywords = "Published during PhD at Warwick",
  url = "files/mh-aic-cate-2008.pdf",
  series = "Proc. of Computers and Advanced Technology in Education 2008"
}