• [1]

    . LI Ti-Pei ,WU Mei . ACTA ASTROPHYSICS SINICA ,1993 , 13 (2) :215—224 (in Chinese)(李惕碚,吴枚1 天体物理学报,1993 ,13 (2) :215 —224)2. LI Ti-Pei ,WU Mei . Astrophysics and Space Science ,1993 ,206 :91 —102