How do I find articles on a topic or by a specific author in an old magazine/newspaper that is not available online?

From Guides

You have three options, depending on the publication you’re looking for.

   a. Use a print index. Search the ALADIN Catalog: type the title of the
       magazine/newspaper you need AND the word “index” to see if a print
       index is available. You can then search the index by author or subject. 
   b. Search the magazine/newspaper website archive. Many magazines and 
       newspapers let you search through their web archives for free. So you can
       search for a topic/author and get the exact date and title of the article. Search
       for the magazine/journal’s title in the ALADIN Catalog. Remember: you
       can’t search for an article in library catalogs. 
   c. Search the database Ulrich's Periodicals Directory, available from the ALADIN Research Portal. 
       This database will tell you if and where a magazine, newspaper, or journal is 
        indexed, either with the full text or citations only. If Gelman subscribes to
        any of the databases that index the title you need, you can then search that
        specific database for articles.