1. Local Analytic Geometry;Abhyankar,1964
2. Algébre Commutative;Bourbaki,2006
3. R-endomorphisms of R〚X〛 are essentially continuous;Eakin;Pacific J. Math.,1976
4. Some questions about the ring of formal power-series;Eakin,1982
5. R-automorphisms of finite order in R〚X〛;Eakin;J. Algebra,1980