1. The Nullstellensatz for certain group rings;Brown;J. London Math. Soc. (2),1982
2. Field Arithmetic;Fried,1986
3. Remarks on injective specialisations;Grunewald;J. Algebra,1979
4. On congruence topologies in number fields;Grunewald;J. Reine Angew. Math.,1979
5. Fields and Rings;Kaplansky,1972