One such resource that could be linked to for biographical information is Gale's Biography Resource, which contains more than 142,000 biographies and related citations from more than 1,000 periodicals. However, to produce this kind of link, there must be a mechanism for locating personal names in text. In addition, variant names can be extracted from the name authority itself, grouped, and run as a search against the text to locate name occurrences. In some cases, it is possible to go another step and connect entity names in the digital library resources to physical specimens. The curation of physical specimens or artifacts is critical to the advancement of many disciplines.
Exhibition catalogs describe the art objects in a particular exhibition.
Museum catalogs provide inventories of the art, natural history, or cultural objects held by a particular museum. These catalogs, increasingly available as computerized databases, are knowledge organization systems that not only provide descriptive records but also point to the location of the object in a museum, an archive, or another collection. For example, in biology, a physical specimen is particularly important when it is the result of the discovery and description of a new organism or of the reclassification of a known organism. A type specimen is the example collected from the field by a taxonomist to serve as the prime example for the description of the organism and the validation of its taxonomic classification and naming. These specimens are held by natural history collections, and their deposit is required by the rules of various taxonomic societies.