1. Anneaux d'invariants de groups finis d'automorphismes d'alge`bres de se´ries formelles;Castillon;C. R. Acad. Sci. Paris Se´r. A,1972
2. Reciproque ` un theóre`me de P. Samuel;Castillon;C. R. Acad. Sci. Paris Se´r. A,1976
3. R-endomorphisms of R〚X〛 are essentially continuous;Eakin;Pacific J. Math.,1976
4. R-automorphisms of R〚X〛;Gilmer;Michigan Math. J.,1970
5. R-automorphisms of R〚X〛;O'Malley,1970