1. Laser Astrodynamical Mission: Concepts, Proposals and Possibilities;Ni,1993
2. Progress in Mission Concept Study and Laboratory Development for the ASTROD—Astrodynamical Space Test of Relativity using Optical Devices;Ni,1997
3. A Mission Concept to Measure Second-Order Relativisic Effects, Solar Angular Monentum and Low-Frequency Gravitational Waves;Ni,1996