1. V. Aguilera, S. Cluet, P. Veltri, D. Vodislav, F. Wattez, Querying the XML documents of the Web, in: Proceedings of the ACM SIGIR Workshop on XML and Information Retrieval, 2000
2. P.G. Anick, R.A. Flynn, Versioning a full-text information retrieval system, in: Proceedings of the 15th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, pp. 98–111, 1992
3. A temporal object-oriented model for digital libraries of documents;Aramburu-Cabo;Concurrency and Computation: Practice and Experience,2001
4. R. Bliujute, C.S. Jensen, S. Saltenis, G. Slivinskas, R-tree based indexing of Now-relative bitemporal data, in: Proceedings of 24th International Conference on Very Large Data Bases, 1998, pp. 345–356
5. S.S. Chawathe, S. Abiteboul, J. Widom, Representing and querying changes in semistructured data, in: Proceedings of the Fourteenth International Conference on Data Engineering, 1998, pp. 4–13