1. Up-grading a 4.7-cm-period plane electromagnetic undulator;Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment;1999-06
2. Undulators for short wavelength FEL amplifiers;Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment;1995-04
3. Undulator scheme providing wide range magnetic field tuning;Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment;1994-03