• [1] Howard Levi, On the structure of differential polynomials and on their theory of ideals, Trans. Amer. Math. Soc. 51 (1942), 532–568. MR 6163, https://doi.org/10.1090/S0002-9947-1942-0006163-2
• [2] D. G. Mead, Differential ideals, Proc. Amer. Math. Soc. 6 (1955), 420–432. MR 71417, https://doi.org/10.1090/S0002-9939-1955-0071417-5
• [3] Joseph Fels Ritt, Differential Algebra, American Mathematical Society Colloquium Publications, Vol. XXXIII, American Mathematical Society, New York, N. Y., 1950. MR 0035763

Bibliography

[1]

H. Levi, On the structure of differential polynomials and on their theory of ideals, Trans. Amer. Math. Soc. vol. 51 (1942) pp. 532-568. MR 0006163 (3:264f)

[2]

D. G. Mead, Differential ideals, Proc. Amer. Math. Soc. vol. 6 (1955) pp. 420-432. MR 0071417 (17:123d)

[3]

J. F. Ritt, Differential algebra, Amer. Math. Soc. Colloquium Publications, vol. 33, 1950. MR 0035763 (12:7c)