M. Reingruber and W.W. Gregory, The Data Modeling Handbook, A Best-Practice Approach to Building Quality Data Models, Wiley and Sons, 1994. A. Salminen and F. Tompa, Grammars++ for modelling information in text, Information Systems, 24(1), 1999. G. Engels, M. Gogolla, U. Hohenstein, K. Hulsmann, P Lohr-Richter, G. Saake, and Ehrich H.-D, Conceptual modelling of database applications using an extended ER model, Data and Knowledge Engineering, 9(4), 1992. H. P. Winston, Learning structural descriptions from examples, in H. P. Winston, editor, Psychology of Computer Vision. McGraw-Hill, 1975. M. Fowler and K. Scott, UML Distilled, Addison-Wesley, 2nd edition, 2000. Information processing systems Technical Committee ISO/TC 97, Information processing systems - Concepts and Terminology for the Conceptual Schema and the Information Base, ISO, TR 9007:1987 (E), 1987. The International Federation of Library Associations and Institutions, Cataloguing and indexing of electronic resources, Available on: http://www.ifla.org/II/catalog.htm, 2003. P. Chen, The entity-relationship model - towards a unified view of data, ACM Transactions on Database Systems, 1(1), 1976. A. Borgida, Description logics in data management, IEEE transactions on knowledge and data engineering, 7(1), 1995. P. Lambrix, Part-Whole Reasoning in Description Logics, PhD thesis, Linköping Studies in Science and Technology No. 448, 1996. D. Calvanese, M. Lenzerini, and D. Nardi, Description logics for conceptual data modeling, in J. Chomicki and G. Saake, editors, Logics for Databases and Information Systems, Kluwer Academic Publisher, 1998. F.M. Donini, M. Lenzerini, D. Nardi, and W. Nutt, The complexity of concept languages, Information and Computation, 134(1), 1997. R. Elmasri and S. Navathe, Fundamentals of Database Systems, Benjamin/Cummings, 2nd edition, 1994. Jcorporate. Expresso framework project, Available on: http://www.jcorporate.com/, 2002. G. Mecca, P. Merialdo and P. Atzeni, Araneus in the era of XML, IEEE Data Engineering Bullettin, Special Issue on XML, 1999. S. Ceri, P. Fraternali, and A. Bongio, Web modeling language (webml): a modeling language for designing web sites, in Proceedings of the Ninth International World Wide Web Conference, Amsterdam, May 15-19, 2000. D. Obasanjo, An exploration of xml in database management systems. Available on: http://www.25hoursaday.com/StoringAndQueryingXML.html, 2001. M. Graves, Designing XML databases, Prentice Hall, 2001. The World Wide Web Consortium, Extensible markup language (xml), Available on: http://www.w3.org/XML/, 2003. The World Wide Web Consortium, Extensible markup language (xml) 1.0 (second edition), W3C recommendation 6 October. Available on: http://www.w3.org/TR/2000/REC-xml-20001006, 2000. E. R. Harold and W. S. Means, XML in a Nutshell, O'Reilly, 2001. The World Wide Web Consortium, Xml linking language (xlink) version 1.0., Available on: http://www.w3.org/TR/xlink/, 2001. A. Salminen, Methodology for document analysis, in A. Kent, editor, Encyclopedia of Library and Information Science, volume 67. Marcel Dekker, 2000. M. E. Soper and L. N. Osborne et al., The librarian's thesaurus : a concise guide to library and information terms, IL ALAA, 1990. DCMI, Dublin core metadata initiative (dcmi). Available on: http://dublincore.org/, 2003. National Information Standards Organization. Guidelines for Abstracts, Z39.14-1997, NISO, 1997. American Institute of Physics, Physics and astronomy classification scheme, Available on: http://www.aip.org/pacs/, 2003. The Library of Congress, Marcxml, marc 21 xml schema, Available on: http://www.loc.gov/standards/marcxml/, 2003. S. Abiteboul and R. Hull, IFO: A formal semantic database model, ACM Transactions on Database Systems, 12(4), 1987. R. Hull and R. King, Semantic data modelling: Survey, applications and research issues, ACM Computing Surveys, 19(3), 1987. M. Niinimaki, M. Tuisku, and M. Heikkurinen, Patterns, XML and MDV platform, a case study, Technical report, Department of Computer and Information Sciences, University of Tampere, 2002.