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Jimenez, V.O.R.: Nuevas perspectivas para la catalogacion : metadatos ver MARC (1999)
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Alonso, M.A.L.: ¬Los tesauros conceptuales como herramienta de precision en los sistemas de organizacion cientifica (1999)
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Velasco, M.: Algoritmo de filtrado multitermino para la obtencion de relaciones jerarquicas en la construction automatica de un tesauro de descriptores (1999)
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