Although centred on research from the Western Front, this work has relevance to WW2 ID discs as well-https://www.sciencedirect.com/science/article/pii/S0379073820304308?dgcid=rss_sd_all&fbclid=IwAR2P9TmFuZTCjHshytco33J3d87qcT39k6u2hx6EwKbfebuqOTrOJhvGgdU
