Sources collected so far:
- “The Holy Reich: Nazi Conceptions of Christianity, 1919–1945” by Richard Steigmann-Gall
https://archive.org/details/holyreichnazicon0000stei - “The Pope and Mussolini” by David I. Kertzer
https://archive.org/details/DavidI.KertzerThePopeAndMussoliniTheSecretHistoryOfPiusXIAndTheRiseOfFascismInEurope2014RandomHouse/page/n257/mode/2up - Pope and devil: the Vatican’s archives and the Third Reichhttps://archive.org/details/popedevilvatican0000wolf_r3z5/page/4/mode/2up
- J.S. Conway’s The Nazi Persecution of the Churches
https://archive.org/details/nazipersecutiono0000conw/page/n17/mode/2up - Susan Zuccotti – Under His Very Windows: The Vatican and the Holocaust in Italyhttps://archive.org/details/underhisverywind0000zucc/page/n9/mode/2up
- Guenter Lewy – The Catholic Church and Nazi Germany
https://archive.org/details/isbn_9780297169215/page/n9/mode/2up - Michael Phayer – Under the Shadow of the Swastika: Catholic-Jewish Relations During the Holocaust (ABSTRACT)
https://www.csus.edu/indiv/c/craftg/hist127/michael%20phayer%20(3).pdf - Ronald Rychlak – Mit Brennender Sorge: The Vatican’s Hidden Encyclical
https://www.firstthings.com/article/2002/06/goldhagen-v-pius-xii - R. R. Hitler, the war, and the pope
https://archive.org/details/hitlerwarpope0000rych/page/n9/mode/2upAny information available on Wikipedia, with a proper citation of an academic source works.
I’d be great to have quotes from the works.