1. There are infinitely many Carmichael numbers;Alford, W. R.;Ann. of Math. (2),1994
2. On composite numbers 𝑛 for which 𝑎ⁿ⁻¹≡(𝑚𝑜𝑑𝑛) for every 𝑎 prime to 𝑛;Beeger, N. G. W. H.;Scripta Math.,1950
3. Note on a new number theory function;Carmichael, R. D.;Bull. Amer. Math. Soc.,1910
4. On Composite Numbers 𝑃 Which Satisfy the Fermat Congruence 𝑎^{𝑃-1}≡1𝑚𝑜𝑑𝑃;Carmichael, R. D.;Amer. Math. Monthly,1912
5. I. Damgård and P. Landrock, Improved bounds for the Rabin primality test, preprint, 12 March 1992, Coding and Cryptography III, Proc. 3rd IMA Conf. on Coding and Cryptography (M. Ganley, ed.), Cirencester, December 1991 (to appear).