@article{JMLR:v10:lehmann09a,
  author  = {Jens Lehmann},
  title   = {DL-Learner: Learning Concepts in Description Logics},
  journal = {Journal of Machine Learning Research},
  year    = {2009},
  volume  = {10},
  number  = {91},
  pages   = {2639--2642},
  url     = {http://jmlr.org/papers/v10/lehmann09a.html}
}