Bush, Vannevar; Conant, James; et al. (1946). "Camouflage of Sea-Search Aircraft"(PDF). Visibility Studies and Some Applications in the Field of Camouflage. Office of Scientific Research and Development, National Defence Research Committee. pp. 225–240. Archived from the original(PDF) on October 23, 2013. Retrieved February 12, 2013.
Bush, Vannevar; Conant, James; et al. (1946). "Camouflage of Sea-Search Aircraft"(PDF). Visibility Studies and Some Applications in the Field of Camouflage. Office of Scientific Research and Development, National Defence Research Committee. pp. 225–240. Archived from the original(PDF) on October 23, 2013. Retrieved February 12, 2013.