1. OWL Web Ontology Language Guide (2004), http://www.w3.org/TR/2004/REC-owl-guide-20040210/
2. RDF/XML Syntax Specification (Revised) (2004), http://www.w3.org/TR/2004/REC-rdf-syntax-grammar-20040210/
3. Ajila, S.: Software Maintenance: An Approach to Impact Analysis of Objects Change. Software – Practice and Experience 25(10), 1155–1181 (1995)
4. Andritsos, P., Fuxman, A., Kementsietsidis, A., Miller, R.J., Velegrakis, Y.: Kanata: Adaptation and Evolution in Data Sharing Systems. SIGMOD Record 33(4), 32–37 (2004)
5. Bernstein, P.A.: Applying Model Management to Classical Meta Data Problems. In: Proc. of the 1st Conference on Innovative Data Systems Research (CIDR) (2003)