Stausberg, Michael (2009). “The study of religion(s) in Western Europe III: Further developments after World War II”. Religion39 (3): 261–282. doi:10.1016/j.religion.2009.06.001.
Kent, Stephen A. (January 2001). “The French and German versus American debate over 'new religions', Scientology and human rights”. Marburg Journal of Religion (University of Marburg) 6 (1): 15. doi:10.17192/mjr.2001.6.3742.