1. Summen n-ter Potenzen in Körpern;Becker;J. Reine Angew. Math.,1979
2. Partial orders on a field and valuation rings;Becker;Comm. Algebra,1979
3. Local global theorems for diagonal forms;Becker;J. Reine Angew. Math.,1980
4. The real holomorphy ring and sum of 2n-th powers;Becker,1982
5. On the description of the reduced Witt ring;Becker;J. Algebra,1978