). "Operation Barbarossa – The Current State of the Debate". The Historical Journal. 31 (2): 377–390. doi:10.1017/S0018246X00012930. {{cite journal}}: Invalid |ref=harv (help)Kolb, Eberhard (2005) [1984]. The Weimar Republic. London; New York: Routledge. ISBN 978-0-415-34441-8. {{cite book}}: Invalid |ref=harv (help)Kolb, Eberhard (1988) [1984]. The Weimar Republic. New York: Routledge. ISBN 978-0-415-09077-3. {{cite book}}: Invalid |ref=harv (help)Kressel, Neil J. (2002). Mass Hate: The Global Rise Of Genocide And Terror. Boulder: Basic Books. ISBN 978-0-8133-3951-1. {{cite book}}: Invalid |ref=harv (help)Kubizek, August (2006) [1953]. The Young Hitler I Knew. St. Paul, MN: MBI. ISBN 978-1-85367-694-9. {{cite book}}: Invalid |ref=harv (help)Kurowski, Franz (2005). The Brandenburger Commandos: Germany's Elite Warrior Spies in World War II. Stackpole Military History series. Mechanicsburg, PA: Stackpole Books. ISBN 978-0-8117-3250-5. {{cite book}}: Invalid |ref=harv (help)Langer, 