@ARTICLE{KozlovaRitter2006,
  author  = {Iryna Kozlova and Norbert Ritter},
  title   = {An Approach to Unification of XML and Object-Relational Data Models},
  journal = {Proc. of the 8th International Conference on Information Integration and Web-based Applications & Services (iiWAS 2006), Austrian Computer Society 2006},
  year    = {2006},
  pages   = {309-321}
}