CalvaneseLN99'

@article{DBLP:journals/jair/CalvaneseLN99,
  author    = {Diego Calvanese and
               Maurizio Lenzerini and
               Daniele Nardi},
  title     = {Unifying Class-Based Representation Formalisms},
  journal   = {J. Artif. Intell. Res. (JAIR)},
  volume    = {11},
  year      = {1999},
  pages     = {199-240},
  ee        = {http://dx.doi.org/10.1613/jair.548},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}