@inproceedings{DL-2013-kb-exchange,
   title = {Computing Solutions in OWL 2 QL Knowledge Base Exchange},
   year = {2013},
   author = {Marcelo Arenas and Elena Botoeva and Diego Calvanese and Vladislav
		  Ryzhikov},
   booktitle = {Proc. of the 26th Int. Workshop on Description Logics (DL 2013)},
   webpdf = {https://www.doc.ic.ac.uk/~ebotoeva/papers/abcr-DL-13.pdf},
   prespdf = {https://www.doc.ic.ac.uk/~ebotoeva/presentations/abcr-DL-13-presentation.pdf}
}