This is a review by Randy L Harvey of the book, StuG IV Assault Gun German Army and Waffen-SS Units Eastern Front, 1944-1945 from Pen & Sword Books by author Dennis Oliver.
This is partial text from the full article (usually with photos) at https://armorama.com/news/stug-iv-assault-gun-german-army-and-waffen-ss-units-eastern-front-1944-1945