Teitelbaum, Richard. The Code Breaker. Bloomberg, gener 2008. «Simons set up Ax with his own trading account, Axcom Ltd., which eventually gave birth to Medallion.»
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Ax, James B.; Kochen, Simon B. «Diophantine problems over local fields. I». American Journal of Mathematics, 87, 3, 1965, pàg. 605–630. DOI: 10.2307/2373065. JSTOR: 2373065.
Ax, James B.; Kochen, Simon B. «Diophantine problems over local fields. II». American Journal of Mathematics, 87, 3, 1965, pàg. 631–648. DOI: 10.2307/2373066. JSTOR: 2373066.
Ax, James B.; Kochen, Simon B. «Diophantine problems over local fields. III». Annals of Mathematics, 83, 3, 1966, pàg. 437–456. DOI: 10.2307/1970476. JSTOR: 1970476.
Ax, James B.; Kochen, Simon B. «Diophantine problems over local fields. I». American Journal of Mathematics, 87, 3, 1965, pàg. 605–630. DOI: 10.2307/2373065. JSTOR: 2373065.
Ax, James B.; Kochen, Simon B. «Diophantine problems over local fields. II». American Journal of Mathematics, 87, 3, 1965, pàg. 631–648. DOI: 10.2307/2373066. JSTOR: 2373066.
Ax, James B.; Kochen, Simon B. «Diophantine problems over local fields. III». Annals of Mathematics, 83, 3, 1966, pàg. 437–456. DOI: 10.2307/1970476. JSTOR: 1970476.