First, you can search directly for newspapers using the "publication" function at the lower left side of the Library OneSearch search page. Using this function allows you to search the name of a particular publication, which will generate a listing of access options for that publication.
Or, if you're looking for newspaper articles from a keyword search, you can use the Source Types filter under the "All filters" tab at the top of the search results page. Select the "News" filter, and when the page refreshes, you’ll see that all of your results are newspaper articles.
