1. The real holomorphy ring and sums of 2nth powers;Becker,1982
2. On real holomorphy rings;Berr,1995
3. On relative real holomorphy rings;Buchner;Manuscripta Math.,1989
4. Integer-Valued Polynomials;Cahen,1997
5. La notion dánneau de décomposition;Chevalley;Nagoya Math. J.,1954