@TechReport{TonesD15,
  author =       {D. Calvanese and B. Cuenca Grau and E. Franconi and
  I. Horrocks and A. Kaplunova and C. Lutz and R. M{\"o}ller and B. Sertkaya and S. Tessaris and A.-Y. Turhan},
  title =        {{D15: Software Tools for Ontology Design and Maintenance}},
  institution =  {TONES},
  year =         2007,
  type           = {Project Deliverable},
  note	= {http://www.tonesproject.org}
}