1. D. H. Lehmer, "Tables concerning the distribution of primes up to 37 millions," 1957 copy deposited in the UMT File & reviewed in MTAC, v. 13, 1959, pp. 56–57.
2. Some problems of ‘Partitio numerorum’; III: On the expression of a number as a sum of primes;Hardy, G. H.;Acta Math.,1923
3. C. L. Baker & F. J. Gruenberger, The First Six Million Prime Numbers, The Rand Corporation, Santa Monica, published by the Microcard Foundation, Madison, Wisconsin, 1959. Reviewed in Math. Comp., v. 15, 1961, p. 82, RMT4.
4. F. Gruenberger & G. Armerding, "Statistics on first six million prime numbers," Paper P-2460 of the Rand Corporation, Santa Monica, 1961, 145 pp., 8\tfrac{1}2𝑥11 in. Copy deposited in UMT File & reviewed in Math. Comp., v. 19, 1965, pp. 503–505.
5. G. G. Alway, "A method of factorisation using a high-speed computer," MTAC, v. 6, no. 37, 1952, pp. 59–60.