"The Amateur Scientist." Wikipedia, http://en.wikipedia.org/wiki/The_Amateur_Scientist (accessed 07/20/2015) [unvetted]
"C.L. Stong Papers, 1952-1976," Smithsonian Institution, http://collections.si.edu/search/results.htm?q=Stong+CL+%28electrical+engineer%29 (accessed 07/20/2015)