Xue wen ren sheng da jia feng fanZhongguo she hui ke xue yuan yu yan yan jiu suo "Ding Shengshu xian sheng bai nian dan chen ji nian wen ji" bian ji zu · First published 2009Open the Tome
A long arc approach to GPS satellite orbit improvementDing-Sheng Chen · First published 1991Open the Tome
