Catholic University of America Press. 2014. ISBN 978-0-81322-589-0. Heer, Hannes. The Logic of the War of Extermination: The Wehrmacht and the Anti-Partisan
rise in the United States and Europe, in part due to the growth of neo-Nazism (LaFree, Arlow). Xu, Weiai Wayne. Mapping Connective Actions in the Global
Catholicism and the Roots of Nazism. Oxford: Oxford University Press, p. 181 : Hastings considers it plausible that Hitler was a Catholic as late as his trial