Мои благодарности Инне Захаревич за полезный и приятный обмен письмами.

● Фейнман Р. Ф. Вы, конечно, шутите, мистер Фейнман! / Пер. с англ. С. Б. Ильина. – М.: АСТ, 2014.

● Gaither, Carl C. and Alma E. Cavazos-Gaither, eds. Gaither’s Dictionary of Scientific Quotations. New York: Springer Science & Business Media, 2008.

● Gleick, James. Genius: The Life and Science of Richard Feynman. New York: Pantheon Books, 1992.

● Ouellette, Jennifer. The Calculus Diaries.

● Ury, Logan R. “Burden of Proof.” Harvard Crimson. December 6, 2006. https://www.thecrimson.com/article/2006/12/6/burden-of-proof-at-1002-am/.

● Zakharevich, Inna. “Another Derivation of Euler’s Integral Formula.” Reported by Noam D. Elkies. Harvard University. http://www.math.harvard.edu/~elkies/Misc/innaz.pdf.