Nexis UniContains many German newspapers and magazines, full-text, from as far back as the early 1990s. Good resource for locating book reviews from major German newspapers.
To find/search German news sources:
*click on blue News tab on left.
*click on "Foreign Language" link.
*change language to German.
*the blue "i" button lists full-text sources
To reduce your search results to a smaller but more relevant set:
*limit your search to Headline & Lead
*use a date range