1. Querying the XML documents on the web;Aguiléra,2000
2. D. Beneventano, S. Bergamaschi, S. Castano, A. Corni, R. Guidetti, G. Malvezzi, M. Melchiori, M. Vincini, Information integration: the MOMIS project demonstration, in: Proc. 26th Internat. Conf. Very Large Data Bases, Cairo, Egypt, September 2000, Morgan Kaufman Publishers, Los Altos, CA, pp. 611–614.
3. P. Bosc, L. Lietard, O. Pivert, Soft querying, a new feature for database management system, in: Proc. DEXA’94 (Database and EXpert System Application), Lecture Notes in Computer Science, vol. 856, Springer, Berlin, 1994, pp. 631–640.
4. Fuzziness in Database Management Systems, Fuzzy theory techniques and applications in data-base management systems;Bosc,1999
5. SQLf: a relational database language for fuzzy querying;Bosc;IEEE Trans. Fuzzy Systems,1995