1. Surface smoothness for high gradient Niobium SC RF cavities;Saito,2003
2. RF Superconductivity: Science, Technology, and Applications;Padamsee,2009
3. Fabrication of niobium cavities;Bauer,1980
4. Surface preparation of niobium;Kneisel,1980
5. A new method of electropolishing niobium;Diepers;Phys. Lett.,1971