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  • × author_ss:"Lopes, M.I."
  1. Lopes, M.I.: Principles underlying subject heading languages : an international approach (1996) 0.00 
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    Abstract
    Discusses the problems in establishing commonly accepted principles for subject retrieval between different bibliographic systems. The Working Group on Principles Underlying Subject Heading Languages was established to devise general principles for any subject retrieval system and to review existing real systems in the light of such principles and compare them in order to evaluate the extent of their coverage and their application in current practices. Provides a background and history of the Working Group. Discusses the principles underlying subject headings and their purposes and the state of the work and major findings
    Theme
    Verbale Doksprachen im Online-Retrieval
  2. Campos, F.M.; Lopes, M.I.; Galvao, R.M.: MARC formats and their use : an overview (1995) 0.00 
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    Abstract
    Reports on work carried out as part of a feasibility study for UseMARCON (User Controlled Generic MARC Converter); a European Community funded project to develop a toolbox capable of converting bibliographic records from any MARC format into any other MARC format through a central conversion format. Reviews the use of MARC formats as internal or cataloguing formats or an exchange formats available in tape magnetic tape services. Special attention is paid to the actual us and use trends of UNIMARC, with particular reference to the role of UNIMARC as a new stage in the evolution of MARC formats, devised to improve and facilitate the exchange of bibliographic information between different systems

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