2007, Panzer Tracts No. 6-3 Schwere-Panzerkampfwagen Maus and E 100 development and production from 1942 to 1945, Thomas L. Jentz and Hilary L. Doyle, Panzer Pacts, 2008 External links TheUntoldPast's video review of the E-series tanks World War II tanks of Germany