Birgel, Franz A. Kuhle Wampe, leftist cinema, and the politics of film censorship in Weimar Germany. Historical Reflections / Réflexions Historiques. 2009, 35 (2): 40–. ISSN 0315-7997. doi:10.3167/hrrh2009.350204(英语).
Nalkur, Priya G.; Jamieson, Patrick E.; Romer, Daniel. The Effectiveness of the Motion Picture Association of America's Rating System in Screening Explicit Violence and Sex in Top-ranked Movies From 1950 to 2006. Journal of Adolescent Health. November 2010, 47 (5): 440–7. PMID 20970078. doi:10.1016/j.jadohealth.2010.01.019.
Dunlop, Alison J. The Famously Little-Known Gottlieb Muffat. Talle, Andrew (编). Bach Perspectives, Volume 9: J. S. Bach and His German Contemporaries 1. University of Illinois Press. 2017-04-20. ISBN 978-0-252-03813-6. doi:10.5406/illinois/9780252038136.003.0004.
Nalkur, Priya G.; Jamieson, Patrick E.; Romer, Daniel. The Effectiveness of the Motion Picture Association of America's Rating System in Screening Explicit Violence and Sex in Top-ranked Movies From 1950 to 2006. Journal of Adolescent Health. November 2010, 47 (5): 440–7. PMID 20970078. doi:10.1016/j.jadohealth.2010.01.019.
Birgel, Franz A. Kuhle Wampe, leftist cinema, and the politics of film censorship in Weimar Germany. Historical Reflections / Réflexions Historiques. 2009, 35 (2): 40–. ISSN 0315-7997. doi:10.3167/hrrh2009.350204(英语).