1. Bertino E., Gibbs S., Rabitti F., Tsichritzis D., Architecture of a Multimedia Document Server, Proc. 2nd ESPRIT Technical Week, Brussels, Sept. 1985.
2. Bertino E., Gibbs S., Rabitti F., Tsichritzis D., A Multimedia Document Server, Proc. Advanced Database Symposium, Japan, August 29–20, 1986.
3. Bertino E., and Rabitti F., An Approach to the Type Management of Complex Objects, IEEE Data Base Engineering, Vol.10, No.3 (Oct. 1987).
4. Bertino E., Rabitti F., Gibbs S., Query Processing in a Multimedia Document System, to appear in ACM Trans. on Office Information Systems.
5. Deppisch U., S-Tree: A Dynamic Balanced Signature Index for Office Retrieval, in Proc. ACM Conference on Information Retrieval, Pisa (Italy), September 8–10, 1986.