1. Atmospheric Model Based on Satellite Drag Data;Barlier;Annales de Geophysique,1978
2. Precise Orbit Determination for CHAMP Using Accelerometer Data;Kang,2002
3. Precision Orbit Determination for CHAMP using GPS Data from BlackJack Receiver;Kuang,2001
4. TOPEX Orbit Determination Using GPS Tracking System;Rim,1992
5. CHAMP Precision Orbit Determination;Rim,2001