You will be looking for works of art on museum websites.
Check catalog entry for references to books, articles, exhibition catalogs, etc., where the artwork is discussed.
For example, here is the entry for the Standing Saddled Horse with Clipped Mane, Cropped and Tied Tail, and Roman-Style Bridle Ornaments in the Harvard Art Museum.
Scroll down to Publication History and Exhibition History. Copy/paste a publication title in BULS.
Suzanne G. Valenstein, Cultural Convergence in the Northern Qi Period: A Flamboyant Chinese Ceramic Container, A Research Monograph, The Metropolitan Museum of Art (New York, 2007), pp. 49, 129, figs. 81-82 is available online.