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            [journal] => stdClass Object
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                    [id_jnl] => 114
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    [1] => stdClass Object
        (
            [section] => stdClass Object
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                    [section] => 1997
                )

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    [2] => stdClass Object
        (
            [title] => Array
                (
                    [0] => Metalanguage XML and the type of element scheme@en
                    [1] => El Metalenguaje XML y el Esquema de Tipo de Elemento@es
                )

        )

    [3] => stdClass Object
        (
            [abstract] => Array
                (
                    [0] => DURING THE LAST DECADES A TOOL FOR ELECTRONIC PROCESSING KNOWN AS MARK UP LANGUAGES HAS BEEN AND IS STILL BEING DEVELOPED. FROM THE MARC FORMAT OF THE 60´S TO THE XML. ESTABLESHED IN OUR DAYS, A VERY CLEAR EVOLUTION HAS, NO DOUBT, TAKEN PLACE. THIS PAPAER ENTEDS TO SETTLE THE ISSUE OF THE HISTORIAL AND FUCTIONAL EVOLITION OF THE MARKS-UP LANGUGES AND OF THEIR CHARACTERISTICS, ADVANTAGES, LIMITATIONS AND EXPECTATIONS. WITHIN THE SPECIFICATIONS OF XML, A PARTICULAR TECHNIQUE FOR THE DECLARATION AND HANDLING OF DOCUMENTARY INFORMATION HAS BEEN DEVELOPED RECENTLY. THE TECHNIQUEIS KNOWN AS TYPE OF ELEMENT SCHEME, OR SIMPLY SCHEMES, BUTIS GOES WELL BEYONG THE SIMPLE AND VERY WELL KNOWN DEFINITION OF DOCUMENT THROUGH A DESCRIPTOR OF TYPE OF DOCUMENT (DTD). THE SCHEMES OFFER A MUCH WIDER POSSIBILITY FOR DEFINING CLASSES OF DOCUMENTS. THIS PAPER ATTEMPTS TO ESTABLISH THESE POSSIBILITIES IN ORDER TO UNDERSTAND THE POTENTIALITY OF SCHEMES, ITS STATE OF ART, ITS TENDENCIES AND ALSO THE IMPORTANCE THAT THE DEVELOPMENT OF SPECIAL SCHEMES MAY HAVE FOR CERTAIN CLASSES OF DOCUMENTS IN OUR MEXICAN LIBRARY ENVIRONMENT FOR A BETTER IMPLEMENTATION AND EXPLOITATION OF DIGITAL COLLECTIONS.@en
                    [1] => EN LAS ULTIMAS DÉCADAS SE HA IDO DESARROLLANDO UNA HERRAMIENTA PARA EL PROCESAMIENTO DE INFORMACIÓN ELECTRÓNICA CONOCIDA COMO LOS METALENGUAJES DE MARCADO. DESDE EL FORMATO "MARC", DE LOS SESENTAS HASTA EL "XML" ESTABLECIDO EN NUESTROS DÍAS HA HABIDO SIN DUDA UNA EVOLUCIÓN EN ESTE SENTIDO BASTANTE NOTABLE. EL PRESENTE DOCUMENTO TRATA DE ESTABLECER UNA EVOLUCIÓN HISTÓRICA Y FUNCIONAL SOBRE LO LENGUAJES DE MARCADO, SUS CARACTERÍSTICAS, VENTAJAS, LIMITACIONES Y SUS EXPECTATIVAS. DENTRO DE LAS ESPECIFICACIONES "XML" SE HA DESARROLLADO RECIENTEMENTE UNA TÉCNICA PARTICULAR DE DECLARACIÓN Y MANEJO DE LA INFORMACIÓN DOCUMENTAL CONOCIDA COMO "ESQUEMA DE TIPO DE ELEMENTO" O SIMPLEMENTE ESQUEMAS, LA CUAL VA MAS ALLÁ DE LA SIMPLE Y YA CONOCIDA DEFINICIÓN DEL DOCUMENTO ATRAVÉS DE UN DESCRIPTOR DE TIPO DE DOCUMENTO (DTD). LOS ESQUEMAS NOS OFRECEN UNA POSIBILIDAD MUCHO MAS AMPLIA PARA DEFINIR CLASES DE DOCUMENTOS. ESTE TRABAJO INTENTA ESTABLECER ESAS POSIBILIDADES PARA PODER TENDER LA POTENCIALIDAD DE LOS ESQUEMAS, SU ESTADO DEL ARTE SUS TENDENCIAS Y FINALMENTE LA IMPORTANCIA QUE EL DESARROLLO DE ESQUEMAS ESPECIALES PARA CIERTAS CLASES DE DOCUMENTOS PUEDE TENER NUESTRO MEDIO BIBLIOTECARIO MEXICANO PARA UN MEJOR ESTABLECIMIENTO Y EXPLOTACIÓN DE LAS COLECCIONES DIGITALES.@es
                )

        )

    [4] => stdClass Object
        (
            [author] => Array
                (
                    [0] => JUAN VOUTSSAS MARQUÉS
                )

        )

    [5] => stdClass Object
        (
            [subject] => Array
                (
                    [0] => Metalanguages@en
                    [1] => Document markup languages@en
                    [2] => Xlm@en
                    [3] => Html@en
                    [4] => Sgml@en
                    [5] => Marc@en
                    [6] => Dtd@en
                    [7] => Esquemas@en
                    [8] => Digital librry@en
                    [9] => Collection development@en
                    [10] => Information technology@en
                    [11] => Metalenguajes de marcado documento@es
                    [12] => Xlm@es
                    [13] => Html@es
                    [14] => Sgml@es
                    [15] => Marc@es
                    [16] => Dtd@es
                    [17] => Esquema de tipo elemnto@es
                    [18] => Esquemas@es
                    [19] => Bibliotecas digitales@es
                    [20] => Desarrollo de colecciones digitales@es
                    [21] => Tecnologías de información@es
                )

        )

    [6] => stdClass Object
        (
            [source] => stdClass Object
                (
                    [vol] => 17
                    [nr] => 34
                    [year] => 2003
                    [theme] => 
                )

        )

    [7] => stdClass Object
        (
            [datePub] => Array
                (
                    [0] => 2003-01-01
                )

        )

    [8] => stdClass Object
        (
            [DOI] => Array
                (
                    [0] => stdClass Object
                        (
                            [type] => DOI
                            [value] => Array
                                (
                                    [0] => 10.22201/iibi.0187358xp.2003.34.4015
                                )

                        )

                )

        )

    [9] => stdClass Object
        (
            [http] => Array
                (
                    [0] => stdClass Object
                        (
                            [type] => HTTP
                            [value] => Array
                                (
                                    [0] => http://rev-ib.unam.mx/ib/index.php/ib/article/view/4015
                                )

                        )

                    [1] => stdClass Object
                        (
                            [type] => HTTP
                            [value] => Array
                                (
                                    [0] => http://rev-ib.unam.mx/ib/index.php/ib/article/view/4015/3565
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        )

    [10] => stdClass Object
        (
            [language] => Array
                (
                    [0] => es
                )

        )

    [11] => stdClass Object
        (
            [license] => Array
                (
                    [0] => stdClass Object
                        (
                            [@xml:lang] => es-ES
                            [#text] => Derechos de autor 2003 Investigación Bibliotecológica: archivonomía, bibliotecología e información
                        )

                )

        )

)