1. Final surface error correction of an off-axis aspheric petal by ion figuring;Allen,1991
2. An ion figuring system for large optics fabrication;Allen,1989
3. Surface error correction of a Keck 10m telescope primary segment by ion figuring;Allen,1991
4. Demonstration of an ion figuring process;Allen,1990
5. Ion beam figuring of optical surfaces;Wilson,1987