Hoyt, JC (2009). "2008 Battle of the Atlantic Survey Methodology". In: Pollock NW, ed. Diving for Science 2009. Proceedings of the American Academy of Underwater Sciences 28th Symposium. Dauphin Island, AL: AAUS; 2009. Archived from the original on 16 April 2013. Retrieved 11 March 2013.
carolinadesigns.com
blog.carolinadesigns.com
Thibodeau, Ryan (30 October 2017). "U-Boats Off the Outer Banks". Carolina Designs Blog. Carolina Designs Realty, Inc. Retrieved 6 November 2017.