@article{exchangingowl2qlknowledgebases,
  title = {Exchanging OWL 2 QL Knowledge Bases},
  author = {Marcelo Arenas and Elena Botoeva and Diego Calvanese and Vladislav Ryzhikov},
  year = {2013},
  eprint = {1304.5810},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1304.5810v3},
}