1. Ahonen, H.: Generating Grammars for Structured Documents Using Grammatical Inference Methods. Ph.D. thesis, Department of Computer Science, University of Helsinki. Series of Publications A, Report A-1996-4 (1996)
2. Lecture Notes in Computer Science;D. Barbosa,2003
3. Bex, G.J., Neven, F., Vansummeren, S.: SchemaScope: a System for Inferring and Cleaning XML Schemas. In: Proceedings of the 2008 ACM SIGMOD International Conference on Management of Data, SIGMOD 2008, pp. 1259–1262. ACM, New York (2008)
4. Bray, T., Paoli, J., Maler, E., Yergeau, F., Sperberg-McQueen, C.M.: Extensible Markup Language (XML) 1.0, 5th edn. W3C recommendation, W3C (2008)
5. Buneman, P., Davidson, S., Fan, W., Hara, C., Tan, W.C.: Keys for XML. In: Proceedings of the 10th International Conference on World Wide Web, WWW 2001, pp. 201–210. ACM, New York (2001)