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UDC

UDC (Universal Decimal Classification) enables to search by international classification system where literature is grouped by scientific disciplines and the corresponding numerical indexes. UDC index can be searched from the UDC Classification Table.

For example:

- 811.511.113 eesti keel
- 94 (474.2) eesti ajalugu
- 355/359 s├Ájandus
- 656.8 post, filateelia