Academic Search Elite
Academic Search Elite provides access to newspapers, magazines, and journals that contain exhibition reviews. To get started, type the title of the exhibition into the search box; or, type the name of an artist or museum into the search box and then add PZ ("Exhibition Review" OR "Entertainment Review") to the end of your search – this should find all of the articles on your artist/museum that have been tagged as being exhibition reviews.
Trying to identify exhibitions on a particular artist or at a specific museum? Search for the name of the artist/museum followed by SU ("Exhibitions") this should find reviews, as well as articles that discuss exhibitions relevant to your search topic.