@inproceedings{GlKa08a,
  title = "Role Conjunctions in Expressive Description Logics",
  author = "Birte Glimm and Yevgeny Kazakov",
  year = "2008",
  booktitle = "Proceedings of the 15th International Conference on Logic for Programming and Automated Reasoning (LPAR 2008)",
  pages = "391-405",
  publisher = "Springer Verlag",
  series = "Lecture Notes in Computer Science",
  volume = "5330",
}