Systematic Thesaurus
Geography Europe [+] 1488390x
South Europe [+] 386730x
Mediterranean [+] 6833x Gibraltar [+] 124x
Spain [+] 121280x Andalusia [+] 11845x Aragon [+] 13330x Asturias [+] 1993x Balearics [+] 2180x Basque country [+] 927x Cantabria [+] 848x Ceuta [+] 208x Extremadura [+] 1588x Galicia [+] 4276x Kanarische Inseln [+] 303x Castile [+] 23774x Catalonia [+] 16608x La Rioja [+] 1154x Madrid [+] 1933x Melilla [+] 51x Murcia (region) [+] 1800x Navarra [+] 4384x Valencia (region) [+] 5726x Portugal [+] 12044x Italy [+] 245376x Malta [+] 848xThesaurus 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.