↑ Jevons, William Stanley, The Principles of Science: A Treatise on Logic and Scientific Method, Macmillan & Co., London, 1874, 2nd ed. 1877, 3rd ed. 1879. Reprinted with a foreword by Ernst Nagel, Dover Publications, New York, NY, 1958.
↑ Solomon W. Golomb, On Factoring Jevons' Number, CRYPTOLOGIA 243 (July 1996).
↑ Năm xuất bản trong lời bình luận này không chính xác.
↑ The NSA has also claimed to have invented public-key cryptography, in the 1960s; however, there is currently (as of 2004) little supporting public evidence for this claim .
