1. Chung-Sheng Li: Scalable Content-Based Retrieval from Distributed Image/Video Databases. White paper. Available at: http://www.research.ibm.com/networked_data_systems/spire/whitepaper/paper.html .
2. Christel, M., et al: Informedia Digital Video Library, Communications of ACM, Vol. 38, No.4 (1997) 57–58.
3. Daniel, R., Lagoze, C.: Distributed active relationships in the Warwick framework. Proceedings of the second IEEE metadata workshop, Silver Spring, MD. (1997)
4. Gauch, S., Li, W., Gauch, J.: The VISION Digital Video Library System, Information Processing & Management, 33(4) (1997) 413–426.
5. Kahn, R., Wilensky, R.: A framework for distributed digital object services. cnri.dlib/tn95-01. (1995) Available at http://www.cnri.reston.va.us/home/cstr/arch/k-w.html .