IFLA, International Federation of Library Associations and Institutions, electronic resources, risorse elettroniche, ISBD(ER), metadata, metadati, UNIMARC, FRBR, Functional Requirements for Bibliographic Records, Requisiti funzionali per le registrazioni bibliografiche, Guidelines for OPAC displays, GARR, Guidelines for Authority and Reference Records, UNIMARC/Authorities, preservation, conservation, conservazione, copyright