1. Abiteboul, S., Hull, R., Vianu, V.: Foundations of databases. Addison-Wesley, Reading (1995)
2. Bounif, H.: Data model versioning and database evolution. In: Encyclopedia of Database Technologies and Applications, pp. 110–115. Idea Group (2005)
3. Chen, N., Dahanayake, A.N.W.: Role-based situation-aware information seeking and retrieval for crisis response. Journal of Intelligent Control Systems 12(2), 186–197 (2007)
4. Dahanayake, A.N.W.: An Environment to support flexible information modeling. PhD thesis, Delft University of Technology, The Netherlands (1997)
5. Danoch, R., Shoval, P., Balaban, M.: Hierarchical evolution of entity-relationship diagrams - a bottom-up approach. In: Proc. EMMSAD 2001 Workshop associated with CAiSE 2001, Interlaken (2001)