RI-Opac: Literature Database for the Middle Ages - Listing over 2.3 million titles

Systematic Thesaurus: Geography Time Topics Autoren/A-Z

Systematic Thesaurus

         General topics and tools  [+]   151956x
             Bibliographies  [+]   20762x
             Periodicals  [+]   66371x
             Collections of papers and festschriften  [+]   45148x
             Reference works  [+]   3814x
                     Biographical reference works  [+]   501x
                     Onomastic reference works  [+]   11x
                     Topographical reference works  [+]   1386x
                     Dictionaries, glossaries, concordances  [+]   700x
                     Manuals  [+]   656x
             History as a scientific field  [+]   2675x
             Archival science  [+]   7919x
             Library science  [+]   5267x


(Select a letter to open the register)

Thesaurus Help:

The systematic thesaurus of the OPAC is a hierachical collection of all descriptors which are used to categorize entries of the database concerning topics, time and geography. You can browse the descriptors by using the systematic tree view or the alphabetic register or by doing a text search on all descriptors.

Descriptors with the folder symbol contain more detailed descriptors of subcategories, which can be displayed by clicking on the descriptor text. If the descriptor has no subcategories, it is marked with a page symbol, and there is no link.

The number next to the descriptor shows the counter of all database entries which are tagged with the descriptor. You can display all these entries by clicking on the number.

You can add a descriptor to the selection with the [+] symbol. If you do so, and then click on the number of another descriptor to show the related entries then only the intersection of both descriptors will be displayed. Selecting a descriptor with the [+] symbol also gives you the possibility to filter the results by using the query form.

NOTE: Not all entries of the Opac are tagged with thesaurus descriptors, so an additional search with the regular query form may deliver different results.