Explore the advanced search options on the DNB catalog. Specifically, navigate to the 'Erweiterte Suche' (Advanced Search) page and identify at least three distinct search fields or criteria that are available beyond a simple keyword search. Additionally, determine if there's a way to search specifically within the 'Exilsammlungen' (Exile Collections) from this advanced search interface or if it requires a separate search.
Navigate to 'https://portal.dnb.de/opac.htm'. Click on the 'Erweiterte Suche' (Advanced Search) link (ID 38). Identify and list at least three distinct search fields or criteria available on the advanced search page (e.g., author, title, ISBN, year of publication, subject). Determine if there is a specific field or option on the advanced search page to limit the search to 'Exilsammlungen' (Exile Collections). If not directly available on the advanced search page, note whether the 'Exilsammlungen' is a separate search option on the main catalog page.
The agent successfully navigates to the 'Erweiterte Suche' page. The agent identifies and lists at least three distinct search fields or criteria (e.g., 'Verfasser/Körperschaft' (Author/Corporate Body), 'Titel' (Title), 'ISBN/ISSN', 'Jahr' (Year), 'Sachgruppe' (Subject Group)). The agent clearly states whether there is a direct option to search within 'Exilsammlungen' from the advanced search page. If no direct option exists on the advanced search page, the agent confirms that 'Exilsammlungen' is a separate search category on the main catalog page (ID 75).