Simulate a user searching for the journal 'Nature' on the ZDB-Katalog. Determine if it's available online for free and identify at least one library that holds it. Additionally, find out if the ZDB-Katalog includes information on the frequency of publication for periodicals.
Navigate to the ZDB-Katalog homepage (https://zdb-katalog.de). Enter 'Nature' into the main search bar and initiate the search. On the search results page, locate and apply the filter for 'Online kostenfrei verfügbar' (Online freely available). Examine the filtered results to determine if 'Nature' is listed as freely available online. Click on a relevant search result for 'Nature' to view its detailed record. On the detailed record page, identify at least one library listed as holding the journal. Review the detailed record or any available filters to confirm if publication frequency information is provided for periodicals in general. Synthesize the findings regarding online availability, holding libraries, and publication frequency.
The agent successfully searches for 'Nature'. The agent applies the 'Online kostenfrei verfügbar' filter. The agent states whether 'Nature' is listed as freely available online (it should not be, based on typical academic journal access). The agent identifies at least one library holding 'Nature' (e.g., 'Staatsbibliothek zu Berlin - Preußischer Kulturbesitz' or 'Deutsche Nationalbibliothek'). The agent confirms that publication frequency information is available for periodicals, either through filters (like 'Frequenz' mentioned in the help section for newspapers) or within the detailed record.