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  • American Technology Corporation Annual Report. http://www.sec.gov/Archives/edgar/data/924383/000101968705003508/atc_10k-093005.htm
  • American Technology Corporation press releases http://www.atcsd.com/pr.html
  • American Technology Corporation: LRAD brochure. http://www.atcsd.com/pdf/LRAD_SellSht-0728-2.pdf
  • American Technology Corporation: LRAD. http://www.atcsd.com/lrad.html
  • Berg, Richard E. "The Physics of Sound." Prentice-Hall, Inc. 1982.
  • Blenford, Adam. "Cruise Lines Turn to Sonic Weapon." BBC News, November 8, 2005. http://news.bbc.co.uk/2/hi/africa/4418748.stm
  • Jewell, Mark. "Sound-Beam Inventor Takes the Prize." MSNBC. April 17, 2005. http://msnbc.msn.com/id/7536267/
  • "Long Range Acoustic Device - LRAD." Defense Update. Issue 1, 2005. http://www.defense-update.com/products/l/LRAD.htm
  • "Master Blaster: A New Noisemaker." Newsweek. July 12, 2005. http://www.msnbc.msn.com/id/5359306/site/newsweek/
  • Materials by Design: Piezoelectric Materials. http://www.mse.cornell.edu/courses/engri111/piezo.htm
  • NDT Resource Center: Piezoelectric Transducers. http://www.ndt-ed.org/EducationResources/CommunityCollege/Ultrasonics/EquipmentTrans/piezotransducers.htm
  • Pain, John. "Ship Blasted Troops with Sonic Weapon." BrietBart.com, AP Release, November 7, 2005. http://www.breitbart.com/news/2005/11/07/D8DNUV2G3.html
  • Ravilious, Kate. "The Secrets of Sonic Weapons." The Guardian. November 8, 2005. http://www.guardian.co.uk/science/story/0,3605,1636903,00.html
  • "Troops Get High-Tech Noisemaker." CNN. March 3, 2004. http://www.cnn.com/2004/TECH/ptech/03/03/sonic.weapon.ap/
  • U.S. Patent Application 20050286346. "High intensity directional electroacoustic sound generating system for communications targeting."
  • "U.S. Troops have Sound Weapon." Washington Times, 2004. http://washingtontimes.com/national/20040307-120634-6220r.htm

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