@article{adescriptionlogicprimer,
  title = {A Description Logic Primer},
  author = {Markus Krötzsch and Frantisek Simancik and Ian Horrocks},
  year = {2012},
  eprint = {1201.4089},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1201.4089v3},
}