This German-language search engine of the Deutsche Nationalbibliothek (DNB; German National Library) functions as a look-up equivalent to the Deutsche Nationalbibliographie (German national bibliography), which attempts to list all books, periodicals (*not* articles in periodicals), government publications, and other materials published in Germany, or in the German language outside of Germany. Memorial Library's Reference Department had a print subscription to that until fall of 2007, when it was cancelled because of the enormous cost of the printed volumes. The link provided takes one to the advanced search ('Erweiterte Suche'). Use date box ('Erscheinungsjahr') and drop-down menu ('Alle Wörter', etc.) to specify search options. (Updates ongoing)
This permalink is a direct, persistent URL to the database that will always work and won't break.