7Zhou Hongnan 1 Zhuang Weifeng 2 Wang Yu 3 (1. Department of physics, Nanjing Normal University, Nanjing 210097) ( 2. Library, Shantou University, Shantou 515063) (3. Department of Astronomy, Nanjing University, Nanjing 210093).NEW REDUCTIONS OF ORBITS BASED UPON CHINESE ANCIENT COMETARY RECORDS[J].中国科学院上海天文台年刊,2000(S1):1-7.
