Knight, Peter (2008). «Outrageous Conspiracy Theories: Popular and Official Responses to 9/11 in Germany and the United States». New German Critique35: 165-93. doi:10.1215/0094033X-2007-024.
Beall, Jeffrey (julio de 2009). «Bentham Open». The Charleston Advisor(en inglés) (The Charleston Company) 11 (1): 29-32. ISSN1525-4003. «Bentham Open's emergence into scholarly publishing in 2007 has served mainly as a venue to publish research of questionable quality. The site has exploited the Open Access model for its own financial motives and flooded scholarly communication with a flurry of low quality and questionable research.»La referencia utiliza el parámetro obsoleto |mes= (ayuda)
«Debunking the 9/11 Myths: Special Report – The World Trade Center». Popular Mechanics (Hearst Communication). 3 de febrero de 2005. «That explanation hasn't swayed conspiracy theorists, who contend that all three buildings were wired with explosives in advance and razed in a series of controlled demolitions.»
Beall, Jeffrey (julio de 2009). «Bentham Open». The Charleston Advisor(en inglés) (The Charleston Company) 11 (1): 29-32. ISSN1525-4003. «Bentham Open's emergence into scholarly publishing in 2007 has served mainly as a venue to publish research of questionable quality. The site has exploited the Open Access model for its own financial motives and flooded scholarly communication with a flurry of low quality and questionable research.»La referencia utiliza el parámetro obsoleto |mes= (ayuda)