• [1] Paul T. Bateman, On the representations of a number as the sum of three squares, Trans. Amer. Math. Soc. 71 (1951), 70–101. MR 42438, https://doi.org/10.1090/S0002-9947-1951-0042438-4
• [2] M. C. Chakrabarti, On the limit points of a function connected with the three-square problem, Bull. Calcutta Math. Soc. 32 (1940), 1–6. MR 5504
• [3] R. Descartes, Oeuvres, vol. 2, Paris, Cerf, 1898.
• [4] L. E. Dickson, History of the theory of numbers, New York, Chelsea Publishing Company, 1952.
• [5] E. Dubouis, L'Interm. des Math. vol. 18 (1911) pp. 55-56, 224-225.
• [6] T. Esterman, On Dirichlet's -functions, J. London Math. Soc. vol. 23 (1948) pp. 275-279.
• [7] G. H. Hardy and E. M. Wright, An introduction to the theory of numbers, Oxford, at the Clarendon Press, 1954. 3rd ed. MR 0067125
• [8] A. Hurwitz, Problems, L'Interm. des Math. vol. 14 (1907) p. 107, Math. Werke vol. 2, p. 751.
• [9] Edmund Landau, Handbuch der Lehre von der Verteilung der Primzahlen. 2 Bände, Chelsea Publishing Co., New York, 1953 (German). 2d ed; With an appendix by Paul T. Bateman. MR 0068565
• [10] D. H. Lehmer, On the partition of numbers into squares, Amer. Math. Monthly 55 (1948), 476–481. MR 26661, https://doi.org/10.2307/2305380
• [11] Gordon Pall, On Sums of Squares, Amer. Math. Monthly 40 (1933), no. 1, 10–18. MR 1522677, https://doi.org/10.2307/2301257
• [12] C. L. Siegel, Ueber die Classenzahl quadratischer Zahlkoerper, Acta Arithmtica vol. 1 (1936) pp. 83-86.

Bibliography

[1]

P. T. Bateman, Representations of a number as a sum of squares, Trans. Amer. Math. Soc. vol. 71 (1951) pp. 70-101. MR 0042438 (13:111i)

[2]

M. C. Chakrabarti, On the limit points of a function connected with the three-square problem, Bull. Calcutta Math. Soc. vol. 32 (1940) pp. 1-6. MR 0005504 (3:162i)

[3]

R. Descartes, Oeuvres, vol. 2, Paris, Cerf, 1898.

[4]

L. E. Dickson, History of the theory of numbers, New York, Chelsea Publishing Company, 1952.

[5]

E. Dubouis, L'Interm. des Math. vol. 18 (1911) pp. 55-56, 224-225.

[6]

T. Esterman, On Dirichlet's -functions, J. London Math. Soc. vol. 23 (1948) pp. 275-279.

[7]

G. H. Hardy and E. M. Wright, An introduction to the theory of numbers, 3d ed., Oxford, The Clarendon Press, 1954. MR 0067125 (16:673c)

[8]

A. Hurwitz, Problems, L'Interm. des Math. vol. 14 (1907) p. 107, Math. Werke vol. 2, p. 751.

[9]

E. Landau, Handbuch der Lehre von der Verteilung der Primzahlen, 2d ed., New York, Chelsea Publishing Company, 1953. MR 0068565 (16:904d)

[10]

D. H. Lehmer, On the partition of numbers into squares, Amer. Math. Monthly vol. 55 (1948) pp. 476-481. MR 0026661 (10:182c)

[11]

G. Pall, On sums of squares, Amer. Math. Monthly vol. 40 (1933) pp. 10-18. MR 1522677

[12]

C. L. Siegel, Ueber die Classenzahl quadratischer Zahlkoerper, Acta Arithmtica vol. 1 (1936) pp. 83-86.