1. Introduction to Commutative Algebra;Atiyah,1969
2. Commutative Algebra;Bourbaki,1972
3. J. W. Brewer, “Power Series over Commutative Rings,” Dekker, to appear.
4. R-endomorphisms of R[[X]] are essentially continuous;Eakin;Pacific J. Math.,1976
5. Multiplicative Ideal Theory;Gilmer,1972